Q2 of 287 Page 345

What is biosphere? Describe its physical divisions?

All the living organisms on the planet constitute the biosphere. The physical divisons of biosphere are the abiotic factors like air, soil, water, heat and light energy from the sun.


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4

Match the stimulus with appropriate response























Conservation practice



Soil A



Water B



Air C



1. Sewage treatment


2. Terracing


3. Pollution under control


Certificate


4. Vegetation cover





 1

Define the environment.

 3

What are the major basic requirements of life?

 4

What are natural resources? Give their types.