Resources: Resource refers to all the materials available in our environment which are technologically accessible, economically feasible and culturally sustainable and help us to satisfy our needs and wants. Resources can broadly be classified according to their availability — they are categorized into renewable and non-renewable resources. They can also be classified as actual and potential based on the level of development and use; based on origin they can be classified as biotic and abiotic, and based on their distribution, as ubiquitous and localised (private, community-owned, national and international resources). An item may become a resource with time and development of technology. The benefits of resource utilization may include increased wealth, proper functioning of a system, or enhanced well-being. From a human perspective, a natural resource is anything obtained from the environment to satisfy human needs and wants.[1] From a broader biological or ecological perspective, a resource satisfies the needs of a living organism (see biological resource).

1. Resources

2. What are the Resources on
Earth?
These are the land, the water and the air

3. The layer of the
air around the
earth is called
the atmosphere
SPHERES
The water on
the earth is
called the
hydrosphere.
The Outercrust
of the earth is
called the
Lithosphere.
1 2 3 4
Living organism
are found
where these
interact
Lithosphere Hydrosphere Atmosphere Biosphere

4. The Breath of Life: AIR
Air is a mixture of gases like nitrogen, oxygen, carbon
dioxide, water vapour and other gases.
During respiration living organisms use oxygen to
break down glucose and get energy for their activities.
This results in the release of carbon dioxide. Burning of
fuels also use oxygen and release carbon dioxide.
During photosynthesis green plants convert carbon
dioxide into glucose in the presence of sunlight. This
results in the release of oxygen.
These processes help to maintain the Oxygen- Carbon
Dioxide balance in nature.

5. COMPOSITION OF
COMPOSITION OF
AIR
AIR

6. The atmosphere covers the earth like a blanket. Air is a
bad conductor of heat. It prevents sudden increase in
temperature during the day and also slows down the
escape of heat during the night. So the atmosphere
keeps the average temperature of the earth fairly
steady during the day and throughout the year.
Role of Atmosphere

7. In coastal regions during the day, the air above the land gets
heated faster and starts rising. As this air rises, a region of low
pressure is created and air over the sea moves into this area of low
pressure. The movement of air from one region to the other creates
winds.
During the day the land gets heated faster than the sea. So the hot
air above the land rises up and cool air from the sea moves
towards the land. During the night sea cools down slowly than the
land. So the hot air above the sea rises up and cool air from the
land moves towards the sea.
Movement of Air : Winds

9. What is air
pollution?
The increase in the content of
harmful substances in the air is
called air pollution

10. Air Pollution
Fossil fuels like coal and petroleum contain
small amounts of nitrogen and sulphur.
When these fuels are burnt, it release oxides
of sulphur and nitrogen. These oxides
dissolve in rain and causes acid rain.
Burning of fossil fuels also release unburnt
carbon particles which reduces visibility.
During cold weather along with condensed
water it forms smog. Smog is a visible
indication of air pollution.

11. Water: A wonderful liquid
Water: A wonderful liquid
A very large area of
the earth's surface is
covered with water.
Water is also found
inside the earth, in
the atmosphere as
water vapour.

12. Mostpreciousresource
1
3
2
4
Agriculture
Industry
Power Generation
Recreation and Wildlife Habitat

13. Pollution
Water pollution is the
contamination of water bodies. It
occurs when pollutants are
discharged directly or indirectly
into water bodies without
adequate treatment to remove
harmful compounds,
Water Pollution

14. Soil
Soil is an important
resource that decides
the diversity of life of
an area

15. Soil is formed by the
breaking down of rocks on
the surface of the earth by
physical, chemical and
biological processes.
Formation of Soil

16. Formation of soil
The sun heats the rocks during the day and the rocks expand and at night the rocks cool
and contracts. This causes the rocks to crack and break into smaller pieces.
Water enters the cracks in the rocks and when water freezes, it expands and causes the
cracks in the rocks to widen and break into smaller pieces. The flowing water carries the
rock pieces. These pieces rub against each other and become smaller and smaller
particles. Strong winds also breaks rocks into smaller particles and carries it from one
place to the other.
The roots of large trees grow into the cracks in rocks and breaks it into smaller pieces.
Lichens which grow on rocks produce some substance which cause the rock surface to
powder and become soil.

17. COMPOSITION
Soil is a mixture of rock
particles, decayed organisms
called humus, living organisms,
minerals, air and water. The
amount of minerals, humus, air
and water are the factors
which decides the biodiversity
in that area.

18. Soil Pollution
The addition of harmful substances which affects the
fertility of the soil and kills the diversity of organisms
living in it is called soil pollution.
Soil pollution is caused by the excessive use of
fertilisers and pesticides. It kills the organisms like
earthworms and bacteria which makes the soil rich
in humus. The removal of useful components and
addition of other harmful substances reduces the
fertility of soil and causes soil pollution.

19. Soil Erosion
What is it? How to reduce it?
Soil erosion can be
reduced or prevented
by afforestation,
construction of bunds,
terraces, dams etc.
The carrying away of soil
from one place to the other
by flowing water and wind is
called soil erosion. Large
scale deforestation also
causes soil erosion.

21. Thank You
By:
Vaibhav Vimal Viraj Suhani Vani