This document discusses cycles of matter and ecological succession. It describes the oxygen, carbon, and water cycles, explaining how photosynthesis and respiration drive the exchange of gases. It also outlines the process of primary and secondary ecological succession, where pioneer species establish communities that over time develop into a climax ecosystem. Human impacts like burning fossil fuels and deforestation disrupt these natural cycles.
Carbon is the fundamental component of all organic compounds. It is one of the primary elements of life, involved in the fixation of energy by photosynthesis. The biosphere includes a complex mixture of carbon compounds. They are originated, transformed and decomposed within this sphere. This module highlights the importance of carbon on the globe.
CARBON CYCLE ENVIRONMENTAL SCIENCE OF NATUREPILLOPATEL
CARBON CYCLE
The carbon cycle describes the process in which carbon atoms continually travel from the atmosphere to the Earth and then back into the atmosphere.
Carbon is the fundamental component of all organic compounds. It is one of the primary elements of life, involved in the fixation of energy by photosynthesis. The biosphere includes a complex mixture of carbon compounds. They are originated, transformed and decomposed within this sphere. This module highlights the importance of carbon on the globe.
CARBON CYCLE ENVIRONMENTAL SCIENCE OF NATUREPILLOPATEL
CARBON CYCLE
The carbon cycle describes the process in which carbon atoms continually travel from the atmosphere to the Earth and then back into the atmosphere.
1. What roles does succession and phytoremediation play in ecology, .pdfarakalamkah11
1. What roles does succession and phytoremediation play in ecology, evolution and the
ecosystems?
Succession plays a major role to change in environmental conditions that causes a pronounced
change in an ecosystem. Disturbances often act quickly and with great effect, to alter the
physical structure or arrangement of biotic and abiotic elements. Disturbance can also occur over
a long period of time and can impact the diversity within an ecosystem. Major ecological
disturbances may
include fires, flooding, windstorms, insect outbreaks and trampling. Earthquakes, various types
of volcanic eruptions, tsunami, firestorms, impact events, climate change, and the devastating
effects of human impact on the environment (anthropogenic disturbances) such as clear cutting,
forest clearing and the introduction of invasive species can be considered major disturbances.
This can be attributed to physical changes in the biotic and abiotic conditions of an ecosystem.
Because of this, a disturbance force can change an ecosystem for significantly longer than the
period over which the immediate effects persist. With the passage of time following a
disturbance, shifts in dominance, shifts in dominance may occur with ephemeral herbaceous life-
forms progressively becoming over topped by taller perennials herbs, shrubs and trees. However,
in the absence of further disturbance forces, many ecosystems will trend back toward pre-
disturbance conditions. Long lived species and those which can regenerate in the presence of
their own adults will finally become dominant. Such alteration, accompanied by changes in the
abundance of different species over time, is called ecological succession. Succession often leads
to conditions that will once again predispose an ecosystem to disturbance.
Phytoremediation play a major role to clean up contaminated environments including metals,
pesticides, explosives, and oil. Also help prevent wind, rain, and groundwater flow from carrying
contaminants away from the site to surrounding areas or deeper underground. Certain plants are
able to remove or break down harmful chemicals from the ground when their roots take in water
and nutrients from the contaminated soil, sediment, or groundwater. Plants can help clean up
contaminants as deep as their roots can reach using natural processes to:
• Store the contaminants in the roots, stems, or leaves.
• Convert them to less harmful chemicals within the plant or, more commonly, the root zone. •
Convert them to vapors, which are released into the air.
• Sorb (stick) contaminants onto their roots where very small organisms called “microbes” (such
as bacteria) that live in the soil break down the sorbed contaminants to less harmful chemicals.
2. Biogeochemical cycles, succession and phytoremediation. Explain how all three work together
for a positive outcome.
Biological diversity is dependent on natural disturbance. The success of a wide range of species
from all taxonomic groups is closely tied to na.
Normal Labour/ Stages of Labour/ Mechanism of LabourWasim Ak
Normal labor is also termed spontaneous labor, defined as the natural physiological process through which the fetus, placenta, and membranes are expelled from the uterus through the birth canal at term (37 to 42 weeks
A Strategic Approach: GenAI in EducationPeter Windle
Artificial Intelligence (AI) technologies such as Generative AI, Image Generators and Large Language Models have had a dramatic impact on teaching, learning and assessment over the past 18 months. The most immediate threat AI posed was to Academic Integrity with Higher Education Institutes (HEIs) focusing their efforts on combating the use of GenAI in assessment. Guidelines were developed for staff and students, policies put in place too. Innovative educators have forged paths in the use of Generative AI for teaching, learning and assessments leading to pockets of transformation springing up across HEIs, often with little or no top-down guidance, support or direction.
This Gasta posits a strategic approach to integrating AI into HEIs to prepare staff, students and the curriculum for an evolving world and workplace. We will highlight the advantages of working with these technologies beyond the realm of teaching, learning and assessment by considering prompt engineering skills, industry impact, curriculum changes, and the need for staff upskilling. In contrast, not engaging strategically with Generative AI poses risks, including falling behind peers, missed opportunities and failing to ensure our graduates remain employable. The rapid evolution of AI technologies necessitates a proactive and strategic approach if we are to remain relevant.
June 3, 2024 Anti-Semitism Letter Sent to MIT President Kornbluth and MIT Cor...Levi Shapiro
Letter from the Congress of the United States regarding Anti-Semitism sent June 3rd to MIT President Sally Kornbluth, MIT Corp Chair, Mark Gorenberg
Dear Dr. Kornbluth and Mr. Gorenberg,
The US House of Representatives is deeply concerned by ongoing and pervasive acts of antisemitic
harassment and intimidation at the Massachusetts Institute of Technology (MIT). Failing to act decisively to ensure a safe learning environment for all students would be a grave dereliction of your responsibilities as President of MIT and Chair of the MIT Corporation.
This Congress will not stand idly by and allow an environment hostile to Jewish students to persist. The House believes that your institution is in violation of Title VI of the Civil Rights Act, and the inability or
unwillingness to rectify this violation through action requires accountability.
Postsecondary education is a unique opportunity for students to learn and have their ideas and beliefs challenged. However, universities receiving hundreds of millions of federal funds annually have denied
students that opportunity and have been hijacked to become venues for the promotion of terrorism, antisemitic harassment and intimidation, unlawful encampments, and in some cases, assaults and riots.
The House of Representatives will not countenance the use of federal funds to indoctrinate students into hateful, antisemitic, anti-American supporters of terrorism. Investigations into campus antisemitism by the Committee on Education and the Workforce and the Committee on Ways and Means have been expanded into a Congress-wide probe across all relevant jurisdictions to address this national crisis. The undersigned Committees will conduct oversight into the use of federal funds at MIT and its learning environment under authorities granted to each Committee.
• The Committee on Education and the Workforce has been investigating your institution since December 7, 2023. The Committee has broad jurisdiction over postsecondary education, including its compliance with Title VI of the Civil Rights Act, campus safety concerns over disruptions to the learning environment, and the awarding of federal student aid under the Higher Education Act.
• The Committee on Oversight and Accountability is investigating the sources of funding and other support flowing to groups espousing pro-Hamas propaganda and engaged in antisemitic harassment and intimidation of students. The Committee on Oversight and Accountability is the principal oversight committee of the US House of Representatives and has broad authority to investigate “any matter” at “any time” under House Rule X.
• The Committee on Ways and Means has been investigating several universities since November 15, 2023, when the Committee held a hearing entitled From Ivory Towers to Dark Corners: Investigating the Nexus Between Antisemitism, Tax-Exempt Universities, and Terror Financing. The Committee followed the hearing with letters to those institutions on January 10, 202
Introduction to AI for Nonprofits with Tapp NetworkTechSoup
Dive into the world of AI! Experts Jon Hill and Tareq Monaur will guide you through AI's role in enhancing nonprofit websites and basic marketing strategies, making it easy to understand and apply.
Safalta Digital marketing institute in Noida, provide complete applications that encompass a huge range of virtual advertising and marketing additives, which includes search engine optimization, virtual communication advertising, pay-per-click on marketing, content material advertising, internet analytics, and greater. These university courses are designed for students who possess a comprehensive understanding of virtual marketing strategies and attributes.Safalta Digital Marketing Institute in Noida is a first choice for young individuals or students who are looking to start their careers in the field of digital advertising. The institute gives specialized courses designed and certification.
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Acetabularia Information For Class 9 .docxvaibhavrinwa19
Acetabularia acetabulum is a single-celled green alga that in its vegetative state is morphologically differentiated into a basal rhizoid and an axially elongated stalk, which bears whorls of branching hairs. The single diploid nucleus resides in the rhizoid.
Operation “Blue Star” is the only event in the history of Independent India where the state went into war with its own people. Even after about 40 years it is not clear if it was culmination of states anger over people of the region, a political game of power or start of dictatorial chapter in the democratic setup.
The people of Punjab felt alienated from main stream due to denial of their just demands during a long democratic struggle since independence. As it happen all over the word, it led to militant struggle with great loss of lives of military, police and civilian personnel. Killing of Indira Gandhi and massacre of innocent Sikhs in Delhi and other India cities was also associated with this movement.
Unit 8 - Information and Communication Technology (Paper I).pdfThiyagu K
This slides describes the basic concepts of ICT, basics of Email, Emerging Technology and Digital Initiatives in Education. This presentations aligns with the UGC Paper I syllabus.
3. Required for Life
All living things use oxygen or depend on
organisms that use oxygen in some way.
4. All Animals and Other Consumers
Use Oxygen
We use oxygen to break down simple
sugar and release energy.
This can be done through respiration or
fermentation.
Animals mainly use respiration.
5. Respiration
The process that breaks apart simple food
molecules to release energy.
It occurs inside cells.
What YOU do with the oxygen you take in.
6. Simple Sugar — Glucose
The molecule most living things use for
energy — including us!
We break down food into smaller molecules
during digestion. One of the small molecules is
glucose.
Glucose leaves your intestines, goes into your
blood and is taken to every cell in your body.
7. Respiration in Cells
In your cells, oxygen is used to split
glucose apart — releasing energy, water
and carbon dioxide.
8. Photosynthesis
Plants take in carbon dioxide and water
and use them to make food. Their food is
simple sugar — glucose.
9. Photosynthesis (continued)
Plants pull the carbon off CO2 and use the
carbon in glucose. (They do not need the oxygen for this. They
get that from water, H2O.)
Plants release the oxygen (O2) back into the
atmosphere.
Other organisms use the free oxygen for
respiration.
10. How are photosynthesis and
cellular respiration similar?
Photosynthesis uses carbon dioxide and
produces oxygen.
Cellular respiration uses oxygen and produces
carbon dioxide.
11. Basic idea
Rabbit eats food,
breaks it down
and releases
CO2.
Plant uses CO2
to make food.
Rabbit gives off CO2,
which is taken in by the plant.
Plant gives off O2,
which is taken in by the rabbit.
12. Everywhere
This happens on land and in the water.
Algae and aquatic plants produce food
underwater through photosynthesis.
They use CO2 dissolved in the water.
Other aquatic organisms use the dissolved
oxygen these plants release into the water.
14. Kind of a C-on/C-off Cycle
Plants take the carbon off the CO2, freeing the
oxygen so it can be used for respiration.
During respiration, organisms attach a carbon to
the O2 and release CO2 so it can be used for
photosynthesis.
One big cycle — all living things depend on each
other for it to work!
15. Human Impact
We keep destroying natural areas, especially
forested areas with many plants and replacing
them with buildings, parking lots, lawns, etc.
Fewer plants mean less oxygen and more
carbon dioxide.
This disturbs the balance of the natural cycle.
16. More Human Impact
Every time something burns (combustion),
more carbon dioxide is released into the
atmosphere.
We add more and more CO2 and destroy
more and more of the plants that clean
the air for us.
17. What We Need to Do
Stop destroying and promote regrowth of
natural areas — especially forests.
Burn less (fossil fuels, forest fires, etc.)
19. What Is Carbon?
An element
The basis of life of earth
Found in rocks, oceans, atmosphere
20. Carbon Cycle
The same carbon atoms are used
repeatedly on earth. They cycle between
the earth and the atmosphere.
21. Plants Use Carbon Dioxide
Plants pull carbon dioxide from the
atmosphere and use it to make food –—
photosynthesis.
The carbon becomes part of the plant
(stored food).
22. Animals Eat Plants
When organisms eat plants, they take in
the carbon and some of it becomes part of
their own bodies.
23. Plants and Animal Die
When plants and animals die, most of their
bodies are decomposed and carbon
atoms are returned to the atmosphere.
Some are not decomposed fully and end
up in deposits underground (oil, coal, etc.).
24. Carbon Slowly Returns to Atmosphere
Carbon in rocks and underground
deposits is released very slowly into the
atmosphere.
This process takes many years.
26. Carbon Cycle Diagram
Carbon in Atmosphere
Plants use
carbon to make
food
Animals eat
plants and
take in carbon
Plants and
animals die
Decomposers
break down dead
things, releasing
carbon to
atmosphere and
soil
Bodies not
decomposed —
after many
years, become
part of oil or
coal deposits
Fossil fuels are
burned; carbon
is returned to
atmosphere
Carbon slowly
released from
these substances
returns to
atmosphere
27. Carbon in Oceans
Additional carbon is stored in the ocean.
Many animals pull carbon from water to use in
shells, etc.
Animals die and carbon substances are
deposited at the bottom of the ocean.
Oceans contain earth’s largest store of carbon.
29. Human Impact
Fossil fuels release carbon stores very
slowly
Burning anything releases more carbon
into atmosphere — especially fossil fuels
Increased carbon dioxide in atmosphere
increases global warming
Fewer plants mean less CO2 removed
from atmosphere
30. What We Need to Do
Burn less, especially fossil fuels
Promote plant life, especially trees
32. Definition:
Natural, gradual changes in the types of
species that live in an area; can be
primary or secondary
The gradual replacement of one plant
community by another through natural
processes over time
33. Primary Succession
Begins in a place without any soil
Sides of volcanoes
Landslides
Flooding
Starts with the arrival of living things such
as lichens that do not need soil to survive
Called PIONEER SPECIES
35. Primary Succession
Soil starts to form as lichens and the
forces of weather and erosion help break
down rocks into smaller pieces
When lichens die, they decompose,
adding small amounts of organic matter to
the rock to make soil
37. Primary Succession
Simple plants like mosses and ferns can
grow in the new soil
http://uisstc.georgetow
n.edu
http://www.uncw.edu
38. Primary Succession
The simple plants die, adding more
organic material
The soil layer thickens, and grasses,
wildflowers, and other plants begin to take
over
http://www.cwrl.utexas.edu
39. Primary Succession
These plants die, and they add more
nutrients to the soil
Shrubs and trees can survive now
http://www.rowan.edu
40. Primary Succession
Insects, small birds, and mammals have
begun to move in
What was once bare rock now supports a
variety of life
http://p2-raw.greenpeace.org
41. Secondary Succession
Begins in a place that already has soil and
was once the home of living organisms
Occurs faster and has different pioneer
species than primary succession
Example: after forest fires
45. Climax Community
A stable group of plants and animals that
is the end result of the succession process
Does not always mean big trees
Grasses in prairies
Cacti in deserts