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Give atleast two sources of methane form...

Give atleast two sources of methane formation in nature.

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Decay of vegetation matter in marshes and paddy fields, and bioges plants.
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PRADEEP-NATURAL RESOURCES : OUR ENVIRONMENT-SHORT ANSWER QUESTIONS
  1. What do you mean by biological weathering ?

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  2. Name adtleast one free-living and one symbiotic bacterium reponsible f...

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  3. Give atleast two sources of methane formation in nature.

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  4. Mention two examples of rocks wherein carbon is present as carbonates.

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  5. What are renewable and non-renewable resource ? Give one example of ea...

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  6. In which part of atmosphere, and most of the atmospheric gases are pre...

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  7. What is the percetage of CO(2)" and "O(2) in the air ? Name the hiolog...

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  8. Name any two natural resources and man-made resources of air pollution...

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  9. Name one disease each which may occur in man due to continuous ingalat...

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  10. Why is aie called 'breath of lifem' ?

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  11. Why is the direction of wind form sea to land during the day in coasta...

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  12. How H(2)SO(4)" and HNO(3) acids affect our heritage monuments such as ...

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  13. Name the fertilizers whose excessive presence in water bodis results i...

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  14. (a) List atlest two gaseous air that are emitted from automobiles and ...

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  15. How are clouds formed?

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  16. How soil formatio occurs ?

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  17. Draw diagram of (i) nitrogen cycle, (ii) carbon cycle.

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  18. Explain water cycle in detail.

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  19. What is global warming? Give its effects.

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  20. Briefly explain depletion of ozone layer and its effects.

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