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What is the percetage of CO(2)" and "O(2...

What is the percetage of `CO_(2)" and "O_(2)` in the air ? Name the hiological process by which these gases are mainly returned to the atmosphere.

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`CO_(2)-0.03% ,` Respiration
`O_(2)-20.94 % ,` Photosynthesis
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PRADEEP-NATURAL RESOURCES : OUR ENVIRONMENT-SHORT ANSWER QUESTIONS
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  2. In which part of atmosphere, and most of the atmospheric gases are pre...

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

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

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

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

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

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

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

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

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  11. How are clouds formed?

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  12. How soil formatio occurs ?

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

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  14. Explain water cycle in detail.

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  15. What is global warming? Give its effects.

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

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  17. Explain the phenomena of : (a) Acid rain, (b) Global warming

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  18. What are the methods or preventing or reducing soil erosion ?

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  19. Explain the following : (a) Carbon monoxide poisoning (b) Eutrophi...

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  20. Name four types of bacteria involved in nitrogen cycle.

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