SlideShare a Scribd company logo
OUR ENVIRONMENT
OUR ENVIRONMENT
 What is Environment ?
 Our Environment is our surrounding. This includes
  living and non-living things around us.
    The non-living components of environment are land,
     water and air.
    The living components are germs, plants, animals and
     people.
Environmental Science
• Environmental Science is the oldest
  science.

• The scientific knowledge started
  developing since the time the humane
  being started observing the surrounding
  environment.

• In the modern curriculum also the first
  subject taught on science is Environmental
  Science.
Habitat
 The Environment consists of various
  habitats
 A habitat is an ecological or
  environmental area that is inhabited by
  a particular species of animal, plant or
  other type of organism
What is a habitat?
A habitat is
any place
where
organisms live
together
naturally.

It is like a
neighborhood
in nature.
What does an Organism
    need in a habitat?

Shelter             Water




          Food
What about our habitat?
Just like animals and
  plants, we need our
  own habitat. What
  are our needs?

                         Shelter



   Food                  Water
The Ecosystem
 The interrelationships between all living
  things and the environment.
 Emphasis is on interdependence of all
  things.
 People, nature, and the earth form a
  delicately balanced system.
The Ecosystem
MATTER CYCLING IN ECOSYSTEMS
• For hundreds of millions of years the chemicals
  and elements found on Earth have remained
  relatively constant, or in other words, they have
  changed very little.

• The amount of one element or chemical in the
  Earth’s surface is practically the same as it was
  many millions of years ago. This consistency is
  one of the things that makes life on Earth
  possible.
Ecological
            Cycles

                      Biosphere




Carbon   Phosphorus   Nitrogen     Water   Oxygen
 cycle      cycle      cycle       cycle    cycle




              Heat in the environment


                                                    Fig. 3-7, p. 55
Nutrient Cycles: Global Recycling

 ◦ Global Cycles recycle nutrients through the
   earth’s air, land, water, and living organisms.
 ◦ Nutrients are the elements and compounds
   that organisms need to live, grow, and
   reproduce.
 ◦ Biogeochemical cycles move these
   substances through air, water, soil, rock and
   living organisms.
The Water Cycle:
               Rain clouds
                                                   Condensation


                                                 Transpiration Evaporation
            Precipitation                Transpiration
               to land                   from plants
Precipitation                                                               Precipitation
                                                           Evaporation
                                          Surface runoff    from land Evaporation
                                Runoff                                 from ocean   Precipitation
                                              (rapid)
                                                                                      to ocean


Infiltration and                                                  Surface
Percolation                                                        runoff
                                                                  (rapid)
                             Groundwater movement (slow)
                                                                       Ocean storage




                                                                                        Fig. 3-26, p. 72
Water’s Unique Properties
  Water is the elixir of Life
  It is a magical substance which is essential to
   the very existence of every life form on earth.
  There are strong forces of attraction between
   molecules of water.
  It takes a large amount of energy for water to
   evaporate.
  Liquid water can dissolve a variety of
   compounds.
  Water expands when it freezes.
Effects of Human Activities
on Water Cycle
  We alter the water cycle by:
    Withdrawing large amounts of freshwater.
    Clearing vegetation and eroding soils.
    Polluting surface and underground water.
    Contributing to climate change.
The Carbon Cycle:




                    Figure 3-27
Effects of Human Activities
on Carbon Cycle
 We alter the carbon cycle
  by adding excess CO2 to
  the atmosphere through:
    Burning fossil fuels.
    Clearing vegetation
     faster than it is replaced.




                                   Figure 3-28
The Nitrogen Cycle:
Bacteria in Action




                      Figure 3-29
Nitrogen Cycle
Effects of Human Activities
on the Nitrogen Cycle
   Adding gases (Oxides of Nitrogen) that
    contribute to acid rain.
   Adding nitrous oxide to the atmosphere through
    farming practices which can warm the
    atmosphere and deplete ozone.
   Contaminating ground water from nitrate ions in
    inorganic fertilizers.
   Contaminate the lakes and other water bodies
    (Eutrophication) by the presence of excess
    nitrogen compounds in the ground and surface
    water.
Effects of Human Activities
on the Nitrogen Cycle
                       Human activities
                       such as production
                       of fertilizers now
                       fix more nitrogen
                       than all natural
                       sources combined.




                                     Figure 3-30
OXYGEN CYCLE
The Phosphorous Cycle




                   Figure 3-31
Effects of Human Activities
on the Phosphorous Cycle
  We remove large amounts of phosphate from the earth
   to make fertilizer.
  We reduce phosphorous in tropical soils by clearing
   forests.
  We add excess phosphates to aquatic systems from
   runoff of animal wastes and fertilizers.
The Sulfur Cycle




                   Figure 3-32
Effects of Human Activities
on the Sulfur Cycle
 We add sulfur dioxide to the atmosphere by:

   Burning coal and oil
   Refining sulfur containing petroleum.
   Convert sulfur-containing metallic ores into free
   metals such as copper, lead, and zinc releasing
   sulfur dioxide into the environment.
Environmental Pollution
  Pollution is the harmful       © Norman R. Rowan/Stock Boston

     alteration of our
     environment by our own
     actions.

  Pollutants – either
     unwanted byproducts or
     our activities or the
     residues of things we have
     made, used, and thrown
     away.
     Air Pollution
    Water Pollution
    Land Pollution
    Noise Pollution
Types of Pollution
 Air pollution
   Most air pollution is caused by the burning of fossil fuels.
 Water pollution
   Disposal of sewage from houses
   Eutrophication
   Infectious agents
   Agricultural wastes
   Organic chemicals
   Inorganic and miscellaneous chemicals
   Sediments from land corrosion
   Radioactive substances
   Waste heat from power plants and industry
Types of Pollution—Continued
 Land pollution
   Pesticides – chemicals used to kill insects defined as
      pests.
     Herbicides – chemicals used to kill plant life,
      particularly weeds.
     Chemical wastes
     Radioactive fallout
     Acid rain
     Garbage
A new threat to the Environment /
Planet.
Global warming
  Since the late 1800’s the average global
   surface temperature has increased about
   0.75 degrees C.

  Most warming has occurred since 1950.
Global Warming
 There is a gradual increase in
  the average temperature of the
  Earth’s atmosphere in the last
  100 years…It has risen about
  1°C since 1900…
   • Are human activities
      causing global warming?
   • What other (non-human)
      factors can cause global
      warming?
   • How does global warming
      affect our life?
Greenhouse gas are efficient in absorbing IR light…

The most important greenhouse gases are:

H2O – Water vapor.
CO2 – Carbon Dioxide
CH4 – methane

The most abundant greenhouse gas in Earth’s atmosphere
is water vapor. Most of the greenhouse heating of Earth’s
atmosphere is due to Water vapor absorption of IR
radiation emitted by Earth, and then transferring the
energy to the surrounding air molecule
Which gas is keeping the Earth warm?
 The major natural greenhouse gases are
 • water vapor, which causes about 36-70% of the
   greenhouse effect on Earth (not including clouds);
 • carbon dioxide, which causes 9-26%;
 • methane, which causes 4-9%, and
 • ozone, which causes 3-7%.

   Note that it is not really possible to assert that a
   certain gas causes a certain percentage of the
   greenhouse effect, because the influences of the
   various gases are not additive.
So, what’s the big deal if human CO2 causes
1°C temperature increase?
  An increase in atmospheric temperature
   (human or natural origin) will lead to the
   increase in the water vapor content of the
   troposphere.
  Because water vapor is a strong greenhouse
   gas, the increase in H2O vapor in turn causes
   enhanced greenhouse effect, raising the
   temperature more.
  Higher atmospheric temperature will cause
   more evaporation of water
  Which leads to even higher temperature…


   Runaway Green House Effect!
Global Warming – Is it true?
 Most of the scientists agree that the global
  warming observed in the last century were
  caused by human activity.
 However, the global climate is a very
  complicated system. We understand the basic
  principle of the climate system, but we still don’t
  understand how nature regulates Earth’s climate
  over the long run, nor do we have the capability
  to create a realistic climate model and be able to
  predict with any certainty the effects of human
  activities on our climate system.
Ecological footprint
•   The ecological footprint is a measure of human
    demand on the Earth's ecosystems.

•   It compares human demand with planet Earth’s
    ecological capacity to regenerate.

•   It represents the amount of biologically productive
    land and sea area needed to regenerate the
    resources a human population consumes and to
    absorb and render harmless the corresponding
    waste.
Ecological footprint
• For 2006, humanity's total ecological footprint was
  estimated at 1.4 planet Earths.
• In other words, humanity uses ecological services
  1.4 times as fast as Earth can renew them.
• Per capita ecological footprint (EF) is a means of
  comparing consumption and lifestyles, and
  checking this against nature's ability to provide for
  this consumption.
• As per 2006 Calculation UAE has the highest
  Ecological footprint in the World (10.68 global
  hectare per person).
• For India this value is only 0.91 (See table)
Ecological footprint                 MOVIE

• Currently (As of 2010) the earth have
  approximately 1.8 biologically productive hectares
  per person.
• Most of the developed courtiers and GCC countries
  the ecological footprint is much larger that this.
• That means if every one in the world live like the
  people in these countries, we would need multiple
  planets.
• The Earth is rapidly depleting in resources and it
  has intensified with the rapid development in the
  last century.
• The only way to counteract this is to take steps in
  reducing your own ecological footprint.
Globalization and Environment
• Globalization has transformed the Environmental
  issues dramatically.
• Worldwide liberalization of trade may provoke
  environmental collapse.
• The major environmental concerns related to trade
  are
   • the domestic environmental effects caused by
     the use of imported products,
   • environmental effects caused by the production
     of exported goods,
   • the environmental effects caused by transport
     movements needed for international trade.
SAVE THE MOTHER EARTH

 There can be no viable future for humanity without a
  healthy planet.

 Earth, water and air support the existence of an immensely
  complex living system, powered by the sun.

 We are part of this web of life. But within a few
  generations, we are using up most of the earth’s stored
  fossil fuel resources and its end products released to the
  atmosphere is altering its composition.

 Our globalizing economic system is destabilizing the
  planet’s life-support systems, the very systems that support
  us and the future generations.
THANK YOU

More Related Content

What's hot

2019 tg biosphere
2019 tg biosphere2019 tg biosphere
Environmental Science - Biogeochemical Cycle
Environmental Science - Biogeochemical CycleEnvironmental Science - Biogeochemical Cycle
Environmental Science - Biogeochemical Cycle
Martin Jon Barnachia
 
Earth’s hydrosphere & water pollution
Earth’s hydrosphere & water pollutionEarth’s hydrosphere & water pollution
Earth’s hydrosphere & water pollution
Jomar Aban
 
Environment and its components,
Environment and its components,Environment and its components,
Environment and its components,
RAMPRASAD KUMAWAT
 
Chapter 56
Chapter 56Chapter 56
Chapter 56
sojhk
 
Human impact on the sulfur cycle
Human impact on the sulfur cycleHuman impact on the sulfur cycle
Human impact on the sulfur cycle
Mary Bohning
 
9 bio natural resources
9 bio natural resources9 bio natural resources
9 bio natural resources
technoHIP
 
Impact of climate change on groundwater
Impact of climate change on groundwaterImpact of climate change on groundwater
Impact of climate change on groundwater
ABHISHEK KUMAR
 
Environmental system
Environmental systemEnvironmental system
Environmental system
shamsur19
 
Powerpoint Presentation
Powerpoint PresentationPowerpoint Presentation
Powerpoint Presentation
weatherlang
 
14 natural resources...aniket
14 natural resources...aniket14 natural resources...aniket
14 natural resources...aniket
077Aniket
 
Save The Earth Planet
Save The Earth PlanetSave The Earth Planet
Save The Earth Planet
Aarti Sahu
 
APES Unit 2 Test Review
APES Unit 2 Test ReviewAPES Unit 2 Test Review
APES Unit 2 Test Review
Jordan Randles
 
Global environment change
Global environment changeGlobal environment change
Global environment change
AryanGoswami8
 
Energy flows
Energy flowsEnergy flows
Energy flows
Jaxy Peilun
 
Environment and Chemistry Education
Environment and Chemistry EducationEnvironment and Chemistry Education
Environment and Chemistry Education
Pranay Bhuiyan
 
Natural resource
Natural resourceNatural resource
Natural resource
Rishi Magadum
 
Chapter - 14, Natural Resources, Science, Class 9
Chapter - 14, Natural Resources, Science, Class 9Chapter - 14, Natural Resources, Science, Class 9
Chapter - 14, Natural Resources, Science, Class 9
Shivam Parmar
 
The physical environment
The physical environmentThe physical environment
The physical environment
Dickdick Maulana
 
Biosphere notes
Biosphere notesBiosphere notes
Biosphere notes
Robin Seamon
 

What's hot (20)

2019 tg biosphere
2019 tg biosphere2019 tg biosphere
2019 tg biosphere
 
Environmental Science - Biogeochemical Cycle
Environmental Science - Biogeochemical CycleEnvironmental Science - Biogeochemical Cycle
Environmental Science - Biogeochemical Cycle
 
Earth’s hydrosphere & water pollution
Earth’s hydrosphere & water pollutionEarth’s hydrosphere & water pollution
Earth’s hydrosphere & water pollution
 
Environment and its components,
Environment and its components,Environment and its components,
Environment and its components,
 
Chapter 56
Chapter 56Chapter 56
Chapter 56
 
Human impact on the sulfur cycle
Human impact on the sulfur cycleHuman impact on the sulfur cycle
Human impact on the sulfur cycle
 
9 bio natural resources
9 bio natural resources9 bio natural resources
9 bio natural resources
 
Impact of climate change on groundwater
Impact of climate change on groundwaterImpact of climate change on groundwater
Impact of climate change on groundwater
 
Environmental system
Environmental systemEnvironmental system
Environmental system
 
Powerpoint Presentation
Powerpoint PresentationPowerpoint Presentation
Powerpoint Presentation
 
14 natural resources...aniket
14 natural resources...aniket14 natural resources...aniket
14 natural resources...aniket
 
Save The Earth Planet
Save The Earth PlanetSave The Earth Planet
Save The Earth Planet
 
APES Unit 2 Test Review
APES Unit 2 Test ReviewAPES Unit 2 Test Review
APES Unit 2 Test Review
 
Global environment change
Global environment changeGlobal environment change
Global environment change
 
Energy flows
Energy flowsEnergy flows
Energy flows
 
Environment and Chemistry Education
Environment and Chemistry EducationEnvironment and Chemistry Education
Environment and Chemistry Education
 
Natural resource
Natural resourceNatural resource
Natural resource
 
Chapter - 14, Natural Resources, Science, Class 9
Chapter - 14, Natural Resources, Science, Class 9Chapter - 14, Natural Resources, Science, Class 9
Chapter - 14, Natural Resources, Science, Class 9
 
The physical environment
The physical environmentThe physical environment
The physical environment
 
Biosphere notes
Biosphere notesBiosphere notes
Biosphere notes
 

Viewers also liked

Querying the Web of Data with XSPARQL 1.1
Querying the Web of Data with XSPARQL 1.1Querying the Web of Data with XSPARQL 1.1
Querying the Web of Data with XSPARQL 1.1
Daniele Dell'Aglio
 
White Tony Galaxy Blimps Usa
White Tony Galaxy Blimps UsaWhite Tony Galaxy Blimps Usa
White Tony Galaxy Blimps Usa
GalaxyBlimps
 
P&MSP2012 - Logging Frameworks
P&MSP2012 - Logging FrameworksP&MSP2012 - Logging Frameworks
P&MSP2012 - Logging Frameworks
Daniele Dell'Aglio
 
An experience on empirical research about rdf stream
An experience on empirical research about rdf streamAn experience on empirical research about rdf stream
An experience on empirical research about rdf stream
Daniele Dell'Aglio
 
On Unified Stream Reasoning
On Unified Stream ReasoningOn Unified Stream Reasoning
On Unified Stream Reasoning
Daniele Dell'Aglio
 
On correctness in RDF stream processor benchmarking
On correctness in RDF stream processor benchmarkingOn correctness in RDF stream processor benchmarking
On correctness in RDF stream processor benchmarking
Daniele Dell'Aglio
 
Multiple choice
Multiple choiceMultiple choice
Multiple choice
EDGmarketing
 
An Ontological Formulation and an OPM profile for Causality in Planning Appli...
An Ontological Formulation and an OPM profile for Causality in Planning Appli...An Ontological Formulation and an OPM profile for Causality in Planning Appli...
An Ontological Formulation and an OPM profile for Causality in Planning Appli...
Daniele Dell'Aglio
 
Our environment
Our environmentOur environment
Our environment
Santhosh Kumar
 
Attachment C Company Overview Catalog Of Services
Attachment C   Company Overview Catalog Of ServicesAttachment C   Company Overview Catalog Of Services
Attachment C Company Overview Catalog Of Services
GalaxyBlimps
 
Ontology based top-k query answering over massive, heterogeneous, and dynamic...
Ontology based top-k query answering over massive, heterogeneous, and dynamic...Ontology based top-k query answering over massive, heterogeneous, and dynamic...
Ontology based top-k query answering over massive, heterogeneous, and dynamic...
Daniele Dell'Aglio
 
On Unified Stream Reasoning - The RDF Stream Processing realm
On Unified Stream Reasoning - The RDF Stream Processing realmOn Unified Stream Reasoning - The RDF Stream Processing realm
On Unified Stream Reasoning - The RDF Stream Processing realm
Daniele Dell'Aglio
 
Augmented Participation to Live Events through Social Network Content Enrichm...
Augmented Participation to Live Events through Social Network Content Enrichm...Augmented Participation to Live Events through Social Network Content Enrichm...
Augmented Participation to Live Events through Social Network Content Enrichm...
Daniele Dell'Aglio
 
Solid waste management
Solid waste managementSolid waste management
Solid waste management
Santhosh Kumar
 
Summary of the Stream Reasoning workshop at ISWC 2016
Summary of the Stream Reasoning workshop at ISWC 2016Summary of the Stream Reasoning workshop at ISWC 2016
Summary of the Stream Reasoning workshop at ISWC 2016
Daniele Dell'Aglio
 
RSEP-QL: A Query Model to Capture Event Pattern Matching in RDF Stream Proces...
RSEP-QL: A Query Model to Capture Event Pattern Matching in RDF Stream Proces...RSEP-QL: A Query Model to Capture Event Pattern Matching in RDF Stream Proces...
RSEP-QL: A Query Model to Capture Event Pattern Matching in RDF Stream Proces...
Daniele Dell'Aglio
 

Viewers also liked (17)

Querying the Web of Data with XSPARQL 1.1
Querying the Web of Data with XSPARQL 1.1Querying the Web of Data with XSPARQL 1.1
Querying the Web of Data with XSPARQL 1.1
 
White Tony Galaxy Blimps Usa
White Tony Galaxy Blimps UsaWhite Tony Galaxy Blimps Usa
White Tony Galaxy Blimps Usa
 
P&MSP2012 - Logging Frameworks
P&MSP2012 - Logging FrameworksP&MSP2012 - Logging Frameworks
P&MSP2012 - Logging Frameworks
 
An experience on empirical research about rdf stream
An experience on empirical research about rdf streamAn experience on empirical research about rdf stream
An experience on empirical research about rdf stream
 
On Unified Stream Reasoning
On Unified Stream ReasoningOn Unified Stream Reasoning
On Unified Stream Reasoning
 
On correctness in RDF stream processor benchmarking
On correctness in RDF stream processor benchmarkingOn correctness in RDF stream processor benchmarking
On correctness in RDF stream processor benchmarking
 
Multiple choice
Multiple choiceMultiple choice
Multiple choice
 
An Ontological Formulation and an OPM profile for Causality in Planning Appli...
An Ontological Formulation and an OPM profile for Causality in Planning Appli...An Ontological Formulation and an OPM profile for Causality in Planning Appli...
An Ontological Formulation and an OPM profile for Causality in Planning Appli...
 
El Sol
El SolEl Sol
El Sol
 
Our environment
Our environmentOur environment
Our environment
 
Attachment C Company Overview Catalog Of Services
Attachment C   Company Overview Catalog Of ServicesAttachment C   Company Overview Catalog Of Services
Attachment C Company Overview Catalog Of Services
 
Ontology based top-k query answering over massive, heterogeneous, and dynamic...
Ontology based top-k query answering over massive, heterogeneous, and dynamic...Ontology based top-k query answering over massive, heterogeneous, and dynamic...
Ontology based top-k query answering over massive, heterogeneous, and dynamic...
 
On Unified Stream Reasoning - The RDF Stream Processing realm
On Unified Stream Reasoning - The RDF Stream Processing realmOn Unified Stream Reasoning - The RDF Stream Processing realm
On Unified Stream Reasoning - The RDF Stream Processing realm
 
Augmented Participation to Live Events through Social Network Content Enrichm...
Augmented Participation to Live Events through Social Network Content Enrichm...Augmented Participation to Live Events through Social Network Content Enrichm...
Augmented Participation to Live Events through Social Network Content Enrichm...
 
Solid waste management
Solid waste managementSolid waste management
Solid waste management
 
Summary of the Stream Reasoning workshop at ISWC 2016
Summary of the Stream Reasoning workshop at ISWC 2016Summary of the Stream Reasoning workshop at ISWC 2016
Summary of the Stream Reasoning workshop at ISWC 2016
 
RSEP-QL: A Query Model to Capture Event Pattern Matching in RDF Stream Proces...
RSEP-QL: A Query Model to Capture Event Pattern Matching in RDF Stream Proces...RSEP-QL: A Query Model to Capture Event Pattern Matching in RDF Stream Proces...
RSEP-QL: A Query Model to Capture Event Pattern Matching in RDF Stream Proces...
 

Similar to Our environment

natural resources
natural resourcesnatural resources
natural resources
Asit Biswas
 
Ecological cycles
Ecological cyclesEcological cycles
Ecological cycles
Brandeis High School
 
Biogeochemical cycles
Biogeochemical cyclesBiogeochemical cycles
Biogeochemical cycles
Shakopee Public Schools
 
Fundamental Components of the Environment and Environmental Pollutants
Fundamental Components of the Environment and Environmental PollutantsFundamental Components of the Environment and Environmental Pollutants
Fundamental Components of the Environment and Environmental Pollutants
RaianIslamEvan
 
ecologicalcycles-100719101152-phpapp01.pdf
ecologicalcycles-100719101152-phpapp01.pdfecologicalcycles-100719101152-phpapp01.pdf
ecologicalcycles-100719101152-phpapp01.pdf
Aayush432061
 
carbon cycle ppt 2.pptx
carbon cycle ppt 2.pptxcarbon cycle ppt 2.pptx
carbon cycle ppt 2.pptx
CourtneyLindsell
 
Biogeochemical cycles
Biogeochemical cyclesBiogeochemical cycles
Biogeochemical cycles
Shaina Mavreen Villaroza
 
EnvironmentalChemistry lecture 1 (422).pdf
EnvironmentalChemistry lecture 1 (422).pdfEnvironmentalChemistry lecture 1 (422).pdf
EnvironmentalChemistry lecture 1 (422).pdf
MaiMostafa61
 
KRISHNA GAUR 2003048 AFR101 PPT.pptx
KRISHNA GAUR 2003048 AFR101 PPT.pptxKRISHNA GAUR 2003048 AFR101 PPT.pptx
KRISHNA GAUR 2003048 AFR101 PPT.pptx
nvsict06
 
Natural Resources
Natural ResourcesNatural Resources
Natural Resources
Teja Narahari
 
Biogeochemical Cycles and Human Activities
Biogeochemical Cycles and Human ActivitiesBiogeochemical Cycles and Human Activities
Biogeochemical Cycles and Human Activities
Amos Watentena
 
Lesson 2. biogeochemical cycles
Lesson 2. biogeochemical cyclesLesson 2. biogeochemical cycles
Lesson 2. biogeochemical cycles
Dr. P.B.Dharmasena
 
Ecology b-cycle
Ecology b-cycleEcology b-cycle
Ecology b-cycle
Bobby Diohen
 
1. What roles does succession and phytoremediation play in ecology, .pdf
1. What roles does succession and phytoremediation play in ecology, .pdf1. What roles does succession and phytoremediation play in ecology, .pdf
1. What roles does succession and phytoremediation play in ecology, .pdf
arakalamkah11
 
3 4 ecosystem cycles
3 4 ecosystem cycles3 4 ecosystem cycles
3 4 ecosystem cycles
ericchapman81
 
Ix natural resources ppt
Ix natural resources pptIx natural resources ppt
Ix natural resources ppt
Navodaya Vidyalaya Samiti
 
Wheng wheng
Wheng whengWheng wheng
Wheng wheng
wengguy
 
B sc micro, biotech, biochem i es u 4 biogeochemicalcycles
B sc micro, biotech, biochem i es u 4 biogeochemicalcyclesB sc micro, biotech, biochem i es u 4 biogeochemicalcycles
B sc micro, biotech, biochem i es u 4 biogeochemicalcycles
Rai University
 
Biogeochemical Cycles/Environmental Science
Biogeochemical Cycles/Environmental ScienceBiogeochemical Cycles/Environmental Science
Biogeochemical Cycles/Environmental Science
Joemar Cabradilla
 
Natural resources
Natural resourcesNatural resources
Natural resources
na0612
 

Similar to Our environment (20)

natural resources
natural resourcesnatural resources
natural resources
 
Ecological cycles
Ecological cyclesEcological cycles
Ecological cycles
 
Biogeochemical cycles
Biogeochemical cyclesBiogeochemical cycles
Biogeochemical cycles
 
Fundamental Components of the Environment and Environmental Pollutants
Fundamental Components of the Environment and Environmental PollutantsFundamental Components of the Environment and Environmental Pollutants
Fundamental Components of the Environment and Environmental Pollutants
 
ecologicalcycles-100719101152-phpapp01.pdf
ecologicalcycles-100719101152-phpapp01.pdfecologicalcycles-100719101152-phpapp01.pdf
ecologicalcycles-100719101152-phpapp01.pdf
 
carbon cycle ppt 2.pptx
carbon cycle ppt 2.pptxcarbon cycle ppt 2.pptx
carbon cycle ppt 2.pptx
 
Biogeochemical cycles
Biogeochemical cyclesBiogeochemical cycles
Biogeochemical cycles
 
EnvironmentalChemistry lecture 1 (422).pdf
EnvironmentalChemistry lecture 1 (422).pdfEnvironmentalChemistry lecture 1 (422).pdf
EnvironmentalChemistry lecture 1 (422).pdf
 
KRISHNA GAUR 2003048 AFR101 PPT.pptx
KRISHNA GAUR 2003048 AFR101 PPT.pptxKRISHNA GAUR 2003048 AFR101 PPT.pptx
KRISHNA GAUR 2003048 AFR101 PPT.pptx
 
Natural Resources
Natural ResourcesNatural Resources
Natural Resources
 
Biogeochemical Cycles and Human Activities
Biogeochemical Cycles and Human ActivitiesBiogeochemical Cycles and Human Activities
Biogeochemical Cycles and Human Activities
 
Lesson 2. biogeochemical cycles
Lesson 2. biogeochemical cyclesLesson 2. biogeochemical cycles
Lesson 2. biogeochemical cycles
 
Ecology b-cycle
Ecology b-cycleEcology b-cycle
Ecology b-cycle
 
1. What roles does succession and phytoremediation play in ecology, .pdf
1. What roles does succession and phytoremediation play in ecology, .pdf1. What roles does succession and phytoremediation play in ecology, .pdf
1. What roles does succession and phytoremediation play in ecology, .pdf
 
3 4 ecosystem cycles
3 4 ecosystem cycles3 4 ecosystem cycles
3 4 ecosystem cycles
 
Ix natural resources ppt
Ix natural resources pptIx natural resources ppt
Ix natural resources ppt
 
Wheng wheng
Wheng whengWheng wheng
Wheng wheng
 
B sc micro, biotech, biochem i es u 4 biogeochemicalcycles
B sc micro, biotech, biochem i es u 4 biogeochemicalcyclesB sc micro, biotech, biochem i es u 4 biogeochemicalcycles
B sc micro, biotech, biochem i es u 4 biogeochemicalcycles
 
Biogeochemical Cycles/Environmental Science
Biogeochemical Cycles/Environmental ScienceBiogeochemical Cycles/Environmental Science
Biogeochemical Cycles/Environmental Science
 
Natural resources
Natural resourcesNatural resources
Natural resources
 

Recently uploaded

Cognitive Development Adolescence Psychology
Cognitive Development Adolescence PsychologyCognitive Development Adolescence Psychology
Cognitive Development Adolescence Psychology
paigestewart1632
 
Your Skill Boost Masterclass: Strategies for Effective Upskilling
Your Skill Boost Masterclass: Strategies for Effective UpskillingYour Skill Boost Masterclass: Strategies for Effective Upskilling
Your Skill Boost Masterclass: Strategies for Effective Upskilling
Excellence Foundation for South Sudan
 
A Independência da América Espanhola LAPBOOK.pdf
A Independência da América Espanhola LAPBOOK.pdfA Independência da América Espanhola LAPBOOK.pdf
A Independência da América Espanhola LAPBOOK.pdf
Jean Carlos Nunes Paixão
 
MARY JANE WILSON, A “BOA MÃE” .
MARY JANE WILSON, A “BOA MÃE”           .MARY JANE WILSON, A “BOA MÃE”           .
MARY JANE WILSON, A “BOA MÃE” .
Colégio Santa Teresinha
 
Liberal Approach to the Study of Indian Politics.pdf
Liberal Approach to the Study of Indian Politics.pdfLiberal Approach to the Study of Indian Politics.pdf
Liberal Approach to the Study of Indian Politics.pdf
WaniBasim
 
Wound healing PPT
Wound healing PPTWound healing PPT
Wound healing PPT
Jyoti Chand
 
NEWSPAPERS - QUESTION 1 - REVISION POWERPOINT.pptx
NEWSPAPERS - QUESTION 1 - REVISION POWERPOINT.pptxNEWSPAPERS - QUESTION 1 - REVISION POWERPOINT.pptx
NEWSPAPERS - QUESTION 1 - REVISION POWERPOINT.pptx
iammrhaywood
 
Main Java[All of the Base Concepts}.docx
Main Java[All of the Base Concepts}.docxMain Java[All of the Base Concepts}.docx
Main Java[All of the Base Concepts}.docx
adhitya5119
 
The History of Stoke Newington Street Names
The History of Stoke Newington Street NamesThe History of Stoke Newington Street Names
The History of Stoke Newington Street Names
History of Stoke Newington
 
Film vocab for eal 3 students: Australia the movie
Film vocab for eal 3 students: Australia the movieFilm vocab for eal 3 students: Australia the movie
Film vocab for eal 3 students: Australia the movie
Nicholas Montgomery
 
Natural birth techniques - Mrs.Akanksha Trivedi Rama University
Natural birth techniques - Mrs.Akanksha Trivedi Rama UniversityNatural birth techniques - Mrs.Akanksha Trivedi Rama University
Natural birth techniques - Mrs.Akanksha Trivedi Rama University
Akanksha trivedi rama nursing college kanpur.
 
Chapter wise All Notes of First year Basic Civil Engineering.pptx
Chapter wise All Notes of First year Basic Civil Engineering.pptxChapter wise All Notes of First year Basic Civil Engineering.pptx
Chapter wise All Notes of First year Basic Civil Engineering.pptx
Denish Jangid
 
How to Add Chatter in the odoo 17 ERP Module
How to Add Chatter in the odoo 17 ERP ModuleHow to Add Chatter in the odoo 17 ERP Module
How to Add Chatter in the odoo 17 ERP Module
Celine George
 
How to Create a More Engaging and Human Online Learning Experience
How to Create a More Engaging and Human Online Learning Experience How to Create a More Engaging and Human Online Learning Experience
How to Create a More Engaging and Human Online Learning Experience
Wahiba Chair Training & Consulting
 
C1 Rubenstein AP HuG xxxxxxxxxxxxxx.pptx
C1 Rubenstein AP HuG xxxxxxxxxxxxxx.pptxC1 Rubenstein AP HuG xxxxxxxxxxxxxx.pptx
C1 Rubenstein AP HuG xxxxxxxxxxxxxx.pptx
mulvey2
 
คำศัพท์ คำพื้นฐานการอ่าน ภาษาอังกฤษ ระดับชั้น ม.1
คำศัพท์ คำพื้นฐานการอ่าน ภาษาอังกฤษ ระดับชั้น ม.1คำศัพท์ คำพื้นฐานการอ่าน ภาษาอังกฤษ ระดับชั้น ม.1
คำศัพท์ คำพื้นฐานการอ่าน ภาษาอังกฤษ ระดับชั้น ม.1
สมใจ จันสุกสี
 
Chapter 4 - Islamic Financial Institutions in Malaysia.pptx
Chapter 4 - Islamic Financial Institutions in Malaysia.pptxChapter 4 - Islamic Financial Institutions in Malaysia.pptx
Chapter 4 - Islamic Financial Institutions in Malaysia.pptx
Mohd Adib Abd Muin, Senior Lecturer at Universiti Utara Malaysia
 
How to Setup Warehouse & Location in Odoo 17 Inventory
How to Setup Warehouse & Location in Odoo 17 InventoryHow to Setup Warehouse & Location in Odoo 17 Inventory
How to Setup Warehouse & Location in Odoo 17 Inventory
Celine George
 
Hindi varnamala | hindi alphabet PPT.pdf
Hindi varnamala | hindi alphabet PPT.pdfHindi varnamala | hindi alphabet PPT.pdf
Hindi varnamala | hindi alphabet PPT.pdf
Dr. Mulla Adam Ali
 
Life upper-Intermediate B2 Workbook for student
Life upper-Intermediate B2 Workbook for studentLife upper-Intermediate B2 Workbook for student
Life upper-Intermediate B2 Workbook for student
NgcHiNguyn25
 

Recently uploaded (20)

Cognitive Development Adolescence Psychology
Cognitive Development Adolescence PsychologyCognitive Development Adolescence Psychology
Cognitive Development Adolescence Psychology
 
Your Skill Boost Masterclass: Strategies for Effective Upskilling
Your Skill Boost Masterclass: Strategies for Effective UpskillingYour Skill Boost Masterclass: Strategies for Effective Upskilling
Your Skill Boost Masterclass: Strategies for Effective Upskilling
 
A Independência da América Espanhola LAPBOOK.pdf
A Independência da América Espanhola LAPBOOK.pdfA Independência da América Espanhola LAPBOOK.pdf
A Independência da América Espanhola LAPBOOK.pdf
 
MARY JANE WILSON, A “BOA MÃE” .
MARY JANE WILSON, A “BOA MÃE”           .MARY JANE WILSON, A “BOA MÃE”           .
MARY JANE WILSON, A “BOA MÃE” .
 
Liberal Approach to the Study of Indian Politics.pdf
Liberal Approach to the Study of Indian Politics.pdfLiberal Approach to the Study of Indian Politics.pdf
Liberal Approach to the Study of Indian Politics.pdf
 
Wound healing PPT
Wound healing PPTWound healing PPT
Wound healing PPT
 
NEWSPAPERS - QUESTION 1 - REVISION POWERPOINT.pptx
NEWSPAPERS - QUESTION 1 - REVISION POWERPOINT.pptxNEWSPAPERS - QUESTION 1 - REVISION POWERPOINT.pptx
NEWSPAPERS - QUESTION 1 - REVISION POWERPOINT.pptx
 
Main Java[All of the Base Concepts}.docx
Main Java[All of the Base Concepts}.docxMain Java[All of the Base Concepts}.docx
Main Java[All of the Base Concepts}.docx
 
The History of Stoke Newington Street Names
The History of Stoke Newington Street NamesThe History of Stoke Newington Street Names
The History of Stoke Newington Street Names
 
Film vocab for eal 3 students: Australia the movie
Film vocab for eal 3 students: Australia the movieFilm vocab for eal 3 students: Australia the movie
Film vocab for eal 3 students: Australia the movie
 
Natural birth techniques - Mrs.Akanksha Trivedi Rama University
Natural birth techniques - Mrs.Akanksha Trivedi Rama UniversityNatural birth techniques - Mrs.Akanksha Trivedi Rama University
Natural birth techniques - Mrs.Akanksha Trivedi Rama University
 
Chapter wise All Notes of First year Basic Civil Engineering.pptx
Chapter wise All Notes of First year Basic Civil Engineering.pptxChapter wise All Notes of First year Basic Civil Engineering.pptx
Chapter wise All Notes of First year Basic Civil Engineering.pptx
 
How to Add Chatter in the odoo 17 ERP Module
How to Add Chatter in the odoo 17 ERP ModuleHow to Add Chatter in the odoo 17 ERP Module
How to Add Chatter in the odoo 17 ERP Module
 
How to Create a More Engaging and Human Online Learning Experience
How to Create a More Engaging and Human Online Learning Experience How to Create a More Engaging and Human Online Learning Experience
How to Create a More Engaging and Human Online Learning Experience
 
C1 Rubenstein AP HuG xxxxxxxxxxxxxx.pptx
C1 Rubenstein AP HuG xxxxxxxxxxxxxx.pptxC1 Rubenstein AP HuG xxxxxxxxxxxxxx.pptx
C1 Rubenstein AP HuG xxxxxxxxxxxxxx.pptx
 
คำศัพท์ คำพื้นฐานการอ่าน ภาษาอังกฤษ ระดับชั้น ม.1
คำศัพท์ คำพื้นฐานการอ่าน ภาษาอังกฤษ ระดับชั้น ม.1คำศัพท์ คำพื้นฐานการอ่าน ภาษาอังกฤษ ระดับชั้น ม.1
คำศัพท์ คำพื้นฐานการอ่าน ภาษาอังกฤษ ระดับชั้น ม.1
 
Chapter 4 - Islamic Financial Institutions in Malaysia.pptx
Chapter 4 - Islamic Financial Institutions in Malaysia.pptxChapter 4 - Islamic Financial Institutions in Malaysia.pptx
Chapter 4 - Islamic Financial Institutions in Malaysia.pptx
 
How to Setup Warehouse & Location in Odoo 17 Inventory
How to Setup Warehouse & Location in Odoo 17 InventoryHow to Setup Warehouse & Location in Odoo 17 Inventory
How to Setup Warehouse & Location in Odoo 17 Inventory
 
Hindi varnamala | hindi alphabet PPT.pdf
Hindi varnamala | hindi alphabet PPT.pdfHindi varnamala | hindi alphabet PPT.pdf
Hindi varnamala | hindi alphabet PPT.pdf
 
Life upper-Intermediate B2 Workbook for student
Life upper-Intermediate B2 Workbook for studentLife upper-Intermediate B2 Workbook for student
Life upper-Intermediate B2 Workbook for student
 

Our environment

  • 2. OUR ENVIRONMENT  What is Environment ?  Our Environment is our surrounding. This includes living and non-living things around us.  The non-living components of environment are land, water and air.  The living components are germs, plants, animals and people.
  • 3. Environmental Science • Environmental Science is the oldest science. • The scientific knowledge started developing since the time the humane being started observing the surrounding environment. • In the modern curriculum also the first subject taught on science is Environmental Science.
  • 4. Habitat  The Environment consists of various habitats  A habitat is an ecological or environmental area that is inhabited by a particular species of animal, plant or other type of organism
  • 5. What is a habitat? A habitat is any place where organisms live together naturally. It is like a neighborhood in nature.
  • 6. What does an Organism need in a habitat? Shelter Water Food
  • 7. What about our habitat? Just like animals and plants, we need our own habitat. What are our needs?  Shelter  Food  Water
  • 8. The Ecosystem  The interrelationships between all living things and the environment.  Emphasis is on interdependence of all things.  People, nature, and the earth form a delicately balanced system.
  • 10. MATTER CYCLING IN ECOSYSTEMS • For hundreds of millions of years the chemicals and elements found on Earth have remained relatively constant, or in other words, they have changed very little. • The amount of one element or chemical in the Earth’s surface is practically the same as it was many millions of years ago. This consistency is one of the things that makes life on Earth possible.
  • 11. Ecological Cycles Biosphere Carbon Phosphorus Nitrogen Water Oxygen cycle cycle cycle cycle cycle Heat in the environment Fig. 3-7, p. 55
  • 12. Nutrient Cycles: Global Recycling ◦ Global Cycles recycle nutrients through the earth’s air, land, water, and living organisms. ◦ Nutrients are the elements and compounds that organisms need to live, grow, and reproduce. ◦ Biogeochemical cycles move these substances through air, water, soil, rock and living organisms.
  • 13. The Water Cycle: Rain clouds Condensation Transpiration Evaporation Precipitation Transpiration to land from plants Precipitation Precipitation Evaporation Surface runoff from land Evaporation Runoff from ocean Precipitation (rapid) to ocean Infiltration and Surface Percolation runoff (rapid) Groundwater movement (slow) Ocean storage Fig. 3-26, p. 72
  • 14. Water’s Unique Properties  Water is the elixir of Life  It is a magical substance which is essential to the very existence of every life form on earth.  There are strong forces of attraction between molecules of water.  It takes a large amount of energy for water to evaporate.  Liquid water can dissolve a variety of compounds.  Water expands when it freezes.
  • 15. Effects of Human Activities on Water Cycle  We alter the water cycle by:  Withdrawing large amounts of freshwater.  Clearing vegetation and eroding soils.  Polluting surface and underground water.  Contributing to climate change.
  • 16. The Carbon Cycle: Figure 3-27
  • 17. Effects of Human Activities on Carbon Cycle  We alter the carbon cycle by adding excess CO2 to the atmosphere through:  Burning fossil fuels.  Clearing vegetation faster than it is replaced. Figure 3-28
  • 18. The Nitrogen Cycle: Bacteria in Action Figure 3-29
  • 20. Effects of Human Activities on the Nitrogen Cycle  Adding gases (Oxides of Nitrogen) that contribute to acid rain.  Adding nitrous oxide to the atmosphere through farming practices which can warm the atmosphere and deplete ozone.  Contaminating ground water from nitrate ions in inorganic fertilizers.  Contaminate the lakes and other water bodies (Eutrophication) by the presence of excess nitrogen compounds in the ground and surface water.
  • 21. Effects of Human Activities on the Nitrogen Cycle  Human activities such as production of fertilizers now fix more nitrogen than all natural sources combined. Figure 3-30
  • 23. The Phosphorous Cycle Figure 3-31
  • 24. Effects of Human Activities on the Phosphorous Cycle  We remove large amounts of phosphate from the earth to make fertilizer.  We reduce phosphorous in tropical soils by clearing forests.  We add excess phosphates to aquatic systems from runoff of animal wastes and fertilizers.
  • 25. The Sulfur Cycle Figure 3-32
  • 26. Effects of Human Activities on the Sulfur Cycle  We add sulfur dioxide to the atmosphere by:  Burning coal and oil  Refining sulfur containing petroleum.  Convert sulfur-containing metallic ores into free metals such as copper, lead, and zinc releasing sulfur dioxide into the environment.
  • 27. Environmental Pollution  Pollution is the harmful © Norman R. Rowan/Stock Boston alteration of our environment by our own actions.  Pollutants – either unwanted byproducts or our activities or the residues of things we have made, used, and thrown away.  Air Pollution  Water Pollution  Land Pollution  Noise Pollution
  • 28. Types of Pollution  Air pollution  Most air pollution is caused by the burning of fossil fuels.  Water pollution  Disposal of sewage from houses  Eutrophication  Infectious agents  Agricultural wastes  Organic chemicals  Inorganic and miscellaneous chemicals  Sediments from land corrosion  Radioactive substances  Waste heat from power plants and industry
  • 29. Types of Pollution—Continued  Land pollution  Pesticides – chemicals used to kill insects defined as pests.  Herbicides – chemicals used to kill plant life, particularly weeds.  Chemical wastes  Radioactive fallout  Acid rain  Garbage
  • 30. A new threat to the Environment / Planet. Global warming  Since the late 1800’s the average global surface temperature has increased about 0.75 degrees C.  Most warming has occurred since 1950.
  • 31. Global Warming There is a gradual increase in the average temperature of the Earth’s atmosphere in the last 100 years…It has risen about 1°C since 1900… • Are human activities causing global warming? • What other (non-human) factors can cause global warming? • How does global warming affect our life?
  • 32.
  • 33. Greenhouse gas are efficient in absorbing IR light… The most important greenhouse gases are: H2O – Water vapor. CO2 – Carbon Dioxide CH4 – methane The most abundant greenhouse gas in Earth’s atmosphere is water vapor. Most of the greenhouse heating of Earth’s atmosphere is due to Water vapor absorption of IR radiation emitted by Earth, and then transferring the energy to the surrounding air molecule
  • 34. Which gas is keeping the Earth warm? The major natural greenhouse gases are • water vapor, which causes about 36-70% of the greenhouse effect on Earth (not including clouds); • carbon dioxide, which causes 9-26%; • methane, which causes 4-9%, and • ozone, which causes 3-7%. Note that it is not really possible to assert that a certain gas causes a certain percentage of the greenhouse effect, because the influences of the various gases are not additive.
  • 35. So, what’s the big deal if human CO2 causes 1°C temperature increase?  An increase in atmospheric temperature (human or natural origin) will lead to the increase in the water vapor content of the troposphere.  Because water vapor is a strong greenhouse gas, the increase in H2O vapor in turn causes enhanced greenhouse effect, raising the temperature more.  Higher atmospheric temperature will cause more evaporation of water  Which leads to even higher temperature…  Runaway Green House Effect!
  • 36. Global Warming – Is it true?  Most of the scientists agree that the global warming observed in the last century were caused by human activity.  However, the global climate is a very complicated system. We understand the basic principle of the climate system, but we still don’t understand how nature regulates Earth’s climate over the long run, nor do we have the capability to create a realistic climate model and be able to predict with any certainty the effects of human activities on our climate system.
  • 37. Ecological footprint • The ecological footprint is a measure of human demand on the Earth's ecosystems. • It compares human demand with planet Earth’s ecological capacity to regenerate. • It represents the amount of biologically productive land and sea area needed to regenerate the resources a human population consumes and to absorb and render harmless the corresponding waste.
  • 38. Ecological footprint • For 2006, humanity's total ecological footprint was estimated at 1.4 planet Earths. • In other words, humanity uses ecological services 1.4 times as fast as Earth can renew them. • Per capita ecological footprint (EF) is a means of comparing consumption and lifestyles, and checking this against nature's ability to provide for this consumption. • As per 2006 Calculation UAE has the highest Ecological footprint in the World (10.68 global hectare per person). • For India this value is only 0.91 (See table)
  • 39.
  • 40. Ecological footprint MOVIE • Currently (As of 2010) the earth have approximately 1.8 biologically productive hectares per person. • Most of the developed courtiers and GCC countries the ecological footprint is much larger that this. • That means if every one in the world live like the people in these countries, we would need multiple planets. • The Earth is rapidly depleting in resources and it has intensified with the rapid development in the last century. • The only way to counteract this is to take steps in reducing your own ecological footprint.
  • 41.
  • 42. Globalization and Environment • Globalization has transformed the Environmental issues dramatically. • Worldwide liberalization of trade may provoke environmental collapse. • The major environmental concerns related to trade are • the domestic environmental effects caused by the use of imported products, • environmental effects caused by the production of exported goods, • the environmental effects caused by transport movements needed for international trade.
  • 43. SAVE THE MOTHER EARTH  There can be no viable future for humanity without a healthy planet.  Earth, water and air support the existence of an immensely complex living system, powered by the sun.  We are part of this web of life. But within a few generations, we are using up most of the earth’s stored fossil fuel resources and its end products released to the atmosphere is altering its composition.  Our globalizing economic system is destabilizing the planet’s life-support systems, the very systems that support us and the future generations.