Welcome to an exciting exploration of the world of natural resources! In this CH-14 class of Grade 9, we will delve into the fascinating realm of our planet's natural resources and learn about their importance and utilization. From minerals to forests, water to air, natural resources are the backbone of our lives and our economy. In this class, we will explore the various types of natural resources, their distribution and availability, and how they are used in everyday life. Through engaging and informative visuals, our PowerPoint presentation will take you on a journey to discover the vast potential of natural resources, their management, and conservation. You will learn about the impact of human activities on these resources and explore the role we can play in sustainable development. By the end of this class, you will have a deeper understanding of the critical role natural resources play in our lives and our planet's well-being. So, join us on this exciting adventure to unlock the secrets of natural resources and become a responsible citizen of the world! Great job on my PPT! My hard work and dedication are evident in the high-quality presentation I've created. My slides are visually appealing, and my content is clear and concise. I should be proud of the effort I put in and the results I achieved Jane se phele niche vali video dekh lo (VERY IMP) https://www.youtube.com/watch?v=V5qMCRAZTN8

1. CH-14
Natural resources
• Introduction
• All life home on a earth required also energy as well as a resource from the earth light ,air, water, land to survive.

2. • Life exist only our planet the earth.
• Natural resources present in atmosphere,lithosphere,hydrosphere,to from the biotic and abiotic
components.
•There are two type of Natural resource
1) Abiotic components
2) Biotic components
•There are three type of abiotic components =1)atmosphere

3. 2)Hydrosphere
3)Lithosphere
biosphere life supporting zone
• Natural resources = it is the stockof natural suchas near water soil Coal Petroleumetc. That are useful to
mankind in manyways.
composition of air
• Nitrogen =78%
• Oxygen =21%
• Argon=0.93%
• Carbon dioxide =0.03%
• Neon,radon Nobel gases = 0.04%
• Total = 100%

4. Biosphere
• It is the life zone where the atmosphere Hydrosphere lithosphere intersect and make life
possible.
• It occupies highest level of hIerachy on organisation on earth
• Biosphere compress biotic and abiotic factors with each other and maintain a balance.
atmosphere
Blanket of air in many layers known as atmosphere.

5. Importance of atmosphere
1. Climate control
• The atmosphere act as a protective blanket for the earth
• Since it is bad conductor of heat
• It keeps the average temperature of Earth
• It previous Undue fluches during day and night
2). Movement of air (wind)
• As the sun unevenly hit the various reason on the earth surface yeah
expand and rise up Over The hotTer region and condense at cooler
reGion

6. • During daytime air above the land heated faster while during night water heated faster.
• These result in the formation off reGion low and high pressure .
• air moves from the higher pressure to lower pressure to balance the difference between pressure by
resulting the wind formation.
.
Air Pollution
Undesirable change in physical chemical or biological characteristics of air is called air pollution.
It is caused due to an increase of harmful substance in air.

7. • Major source of air pollution=
1. Automoblies
2. Thermal power plant
3. Industries
4. Burning of fossil fuel
5. Pesticides and weedicides
• Harmful effect of air pollution
1. It effect respiratory system causing breathing difficulty cause this is like asthma, tuberculosis, lung cancer
and bronchities.
2. Burning of fossil fuels releases oxides of Nitrogen and sulphur in hill station of these gases are harmful
3. The combination of fossil fuels causes increases of carbon dioxide.

8. •Smog(smoke+fog)
• The suspended particles could be unburnt carbon particles called hydrocarbon
• The Pressure of high level all these pollution reduce visibility in cold water where the water also comes out
for the forming of smog.
• Smoke is a indicator of air pollution.
• Regular breathing in smoke causes allergy.

9. Rain
• Evaporation of water from water bodies followed by condensation of vapour in result in rain formation.
• Step of rain formation
1. Heat of sun
2.Evaporation of water from water bodies
3.Rising of hot air with water vapour.
4.Rain formation

10. 5. Increase in size of water droplets .
6. Condensation Of water vapour as droplet.
7.Exception and Subsequent cooling off air.
Note = windpatternin particular region directthe patternof rain.

11. Acid rain
• It is formed from gases like CO2 and N2 present in polluted air.
• It cause damage to both living and nonliving component.
• Acid rain contains oxide of Nitrogen and sulphur .

12. • Water
• The oceans river Lake pond pool polar ice cap water collective form the
Hydrosphere.
• Importance of water for living organism=
1. wholesaler process required to access medium.
2. Dissolved substance are need for body reaction as well as
transportation.
3. Osmoregulation carried out by all organism to sustain life.
4. All reaction take place in water are also transport in dissolved form.

13. 1. The teRrestrail life form required freshwater because their bodies cannot tolerate saline water.
• Note= the relation between water and species richness is as well as number of member of each species present
in a given proportion.

14. Water pollution
• The undesirable change in physical chemical biological characteristics of water is called
Water pollution.
• This could be due to addition of microbes into water bodies and=
1. Pesticides and fertilizer
2. Sewage
3. Heat water from factory
4. Domestic waste

15. Harmful effect of water pollution
1. Mercury salt used by paper industries.
2. It could also contain disease causing organisms like cholera.
3. Aquatic organisms best in optimum temperature sudden change in the terms of water
affect their bReeding.
4. Industries and household waste reduce dissolved Oxygen in water bodies there buy it
affect aquatic animal.

16. Biogeochemical cycle
Definition=cycling flow of nutrients between living and nonliving component called
biogeochemical cycle.
• Biogeochemical cycle this possible the transfer of of energy and initial nutrients among the
components of Biosphere leading the balance between them.
• Biogeochemical cycle has four parts=
1. Water cycle
2. Nitrogen cycle

17. 3.Carbon cycle
4. Oxygen cycle
water cycle
• The whole process in which water evaporates and fall on the land as
rain letter flow back into the sea by river.
• In addition to operates of water from water bodies water is also
added to atmosphere through transpiration and respiration by
organisms.
• Condensation of atmospheric water leads to rain and snow fall.
• Underground water came to surface through walL and tube well

18. Nitrogen cycle
• A process in nature in which nitrogen bases from its elemental from in atmosphere to simple molecules in the soil and
water which gets converted to more Complex molecule in living being and back to the simplex nitrogen molecule in the
atmosphere.
• Nitrogen is (78%)vital element found in all organisms.
• Most life form cannot use atmospheric nitrogen direct except few nitrogen fixing bacteria found in root of nodule of
leguminous crop.
• Plant utilise nitrogen and nitrate to provide protein nucleic acid vitamin which are then passed on the
plant.
• Certain soil bacteria convert nitrogen compound of Dead organism into nitrate and nitrite
• Denitrification carried out by certain bacteria released nitrogen to back atmosphere.

20. • Nitrogen fixation
• The process of converting atmospheric nitrogen into nitrates which are soluble in water.
• Ex=rhizObium, blue green algae
• Nitrification
• The process of converting reduced nitrogen to into oxide from nitride nitrate ,nitrIte.
• Ex = nitrobacter, nitrosomons
• Ammonification
• The process in which organic forms nitrogen are converted into Ammonia or ammonium Ion by nitrofix bacteria.
• Denitrification
• A process in which anaerobic bacteria convert nitrate Ion into Nitrogen gas.
• Ex=pseudomononas

21. Carbon cycle.
• The cyclic process in which carbon is circulated continuously through the living and nonliving component of the biosphere is
called carbon cycle.
• Carbon occurs in elemental form as well as organic and inorganic compound.
• The basic structure of all life molecule like CarbohydRate, protein fat nuclear acid and vitamin in the composed carbon.
• Carbon dioxide is fixed by the green plant during photosynthesis as well as by Marine during shell. Photosynthesis convert
Co2 in glucose which photosynthesis converts CO2 through respiration.
• Combination of fuel also released carbon dioxide to atmosphere.
• Carbon Oxide is an important Greenhouse gas that present the escape of heat from earth and cause global warming.

23. Oxygen cycle
1. Oxygen exist in earth in elemental form as well
as in combined form.
2. Vitalife molecule like protein carbohydrates are
also made up of oxygen.
3. The process of respiration conversion and
formation of Nitrogen oxide utilise atmosphere
oxygen.

24. Green house effect
• The process in which greenhouse Gases like carbon dioxide thermal radiation imited by earth surface to
reflected Back Down therefore causing increase in world wide average temperature.

25. Global warming
• And increase temperature of Earth’s atmosphere brought
about by and hence greenhouse effect.
• Note= over natural resources should be usedin assistant
manager so they can prevent for definition and pollution and
for next generation.

26. Ozone layer
1. Event in the upper layer atmosphere strategic intent this
atmospheric Oxygen and contain 3 atom of Oxygen it
prevents from harmful UV rays which are come from Sun
which effects earth and living organisms.
• Note= CFC and otherman made compound reactwiththe O3
molecule and cause O3 Layer depletion.

27. •Made by=kalpesh yadav
•Class =9 a
•Guided by =yogendra sir
• Thank you