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What is rain water harvesting?...

What is rain water harvesting?

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This technique is used to capture and store rain water by making special water-harvesting structures so that there is an increase in the recharge of underground water resources.
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What is rainwater harvesting? What is the need of rainwater harvesting ?

What is rainwater harvesting?

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What do you mean by rain water harvesting ? Give its various techniqus and advanrages.

What is water harvesting ? List two main advantages associated with water harvesting at the community level. Write two causes for the failure of sustained availability of groundwater.

(a) What is meant by rainwater harvesting ? Name some of the ancient structures used for rainwater harvesting by the rural people. (b) What are the various advantages of water stored in ground ?

PRADEEP-NATURAL RESOURCES : OUR ENVIRONMENT-SHORT ANSWER QUESTIONS
  1. Name respiratory diseases that may occur due to air pollution.

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  2. Name the two acids that are present in acid rain.

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  3. What is rain water harvesting?

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  4. List main sources of water pollution.

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  5. What are non-biodegradable substances ?

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  6. Name two types of biogeochemical cycles.

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  7. Name two examples of green house gases which contribute maximum toward...

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  8. Give two examples of nitrifying bacteria.

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  9. Give two main sources of carbon.

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  10. Name two measures which prevent the soil erosion.

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  11. What do you mean by biological weathering? Give two examples.

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  12. Differentiate between humification and mineralization.

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  13. Why is lead compound added to petrol? What is its harm?

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  14. What do you mean by hygroscopic water and combined water in the soil ?...

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  15. What is biomagnification? Name two heavymetals which, when magnified r...

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  16. What is eutrophication ? What it its consequence ?

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  17. Name two fresh water sources which provide fresh water for human use.

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  18. (a) Name two acids that are usually present in rain water. (b) How t...

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  19. Name any two climatic events that take place in the atmosphere.

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  20. Name any two fossil fuels being used by man which cause air pollution.

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