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We know that many human activities lead ...

We know that many human activities lead to increasing levels of pollution of the air, water-bodies and soil. Do you think that isolating these activities to specific and limited areas would help in reducing pollution?

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MBD -HARYANA BOARD-OUR NATURAL RESOURCES-Example
  1. How are living organisms dependent on the soil ? Are organisms that li...

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  2. You have seen weather reports on television and in newspapers. How do ...

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  3. We know that many human activities lead to increasing levels of pollut...

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  4. Write a note on formation of soil.

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  5. What are the effects of use of fertilizers and pesticides for long per...

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  6. What are the effects of use of fertilizers and pesticides for long per...

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  7. Why is soil as resource important for mankind ? Mention the constituen...

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  8. Define soil fertility. How can it be maintained ?

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  9. What is air pollution ? Write the main sources and preventive measures...

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  10. Write a few properties of water. Sketch water Cycle.

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  11. What is nitrogen cycle ? Make a simple line sketch to show nitrogen cy...

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  12. Briefly explain oxygen cycle.

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  13. Briefly explain carbon cycle in nature.

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  14. What are the causes of ozone depletion ?

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  15. Write a note on fresh water resources.

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  16. What is atmosphere ? Name its different layers.

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  17. What is the role of atmosphere in climate control ?

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  18. What is ozone layer ? Write its importance.

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  19. What is meant by ozone shield ?Howthe CFC's and ozone depleting substa...

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  20. Write a note on the air pollution caused due to combustion

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