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Assertion (A) : Carbon dioxide is one of...

Assertion (A) : Carbon dioxide is one of the important greenhouse gases.
Reson (R) : It is largely produced by respiratory function of animals and plants. a)Both A and R are correct and R is the correct explanation of A. b).Both A and R are correct but R is not the correct explanation of A. c)Both A and R are not correct. d)A is not correct but R is correct.

A

Both A and R are correct and R is the correct explanation of A.

B

Both A and R are correct but R is not the correct explanation of A.

C

Both A and R are not correct.

D

A is not correct but R is correct.

Text Solution

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The correct Answer is:
b
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MODERN PUBLICATION-ENVIRONMENTAL POLLUTION -NCERT FILE ( NCERT EXEMPLAR PROBLEMS(Multiple Choice Questions) )
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  2. How is ozone produced in stratosphere?

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  3. Ozone is a gas hevier than air. Wy does ozone layer not settle down ne...

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  4. Some time ago formation of polar stratospheri clouds reported over Ant...

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  5. A person was using water supplied by Municipality. Due to shortage of ...

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  6. Match the pollution(s) in column I with the effect(s) in column II.

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  7. Match the activity given in Column I with the type of pollution create...

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  8. Match the pollutants given in Column I with their effects given in Col...

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  9. Assertion (A) : Green house effect was observed in houses used to grow...

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  10. Assertion (A) : The pH of acid rain is less than 5.6. Reason (R) : C...

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  11. Assertion: Photochemical smog is oxidising in nature. Reason: Photoc...

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  12. Assertion (A) : Carbon dioxide is one of the important greenhouse gase...

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  13. Assertion (A) : Ozone is destroyed by solar radiation in upper streato...

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  14. Assertion (A) : Excessive use of chlorinated synthetic pesticides caus...

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  15. Assertion: If BOD level of water in a reservoir is less than 5 ppm it ...

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  16. How can you apply green chemistry for the following ? (a) To control...

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  17. Green plants use carbon dioxide for photosynthesis and return oxygen t...

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  18. Greenhouse Effect and Global Warming

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  19. A farmer was using pesticides on his farm. He used the produce of his...

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  20. For dry cleaning, in the place of tetrachloroethane, liquefied carbon ...

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