Natural Resources (Practice Sheet, Class 9)

(1) What is nitrogen cycle?

Solution- 

(2) What is ozone layer? What is the significance of it?

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(3) How is the water returning to water bodies?

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(4) Can we reverse the soil erosion?

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(5) What are the natural resources?

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(6) How to control air pollution?

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(7) What is the humus?

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(8) What is the global warming and its consequences?

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(9) Why carbon cycle is necessary?

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(10) What will be the direction of air which would flow at night in coastal areas?

Solution- 

Helping Topics

Natural resources

Practice sheet, class 9

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