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By which of the following the earth is p...

By which of the following the earth is protected from UV rays?  

A

Ozone layer

B

Carbon monoxide

C

Oxygen

D

Carbon dioxide

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The correct Answer is:
A
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KUMAR PRAKASHAN-ENVIRONMENTAL ISSUES-Section - F (Multiple Choice Question (MCQs))(MCQs FROM .DARPAN. BASED ON TEXTBOOK)
  1. How much percent of SO(2) is noted by Gujarat Pollution Control Board,...

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  2. Which of the following is not a reason for deforestation ?   (A) Popu...

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  3. By which of the following the earth is protected from UV rays?

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  4. Which method is not used in organic farming ?

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  5. Which chemical is utilized in water to destroy mosquitoes?

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  6. What is the effect of air pollution on crops ?

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  7. Which of the following sentence is differing for the control of increa...

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  8. Which of the following can be done to control global warming ?

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  9. Which of the following is not an inert waste ?   (A) Construction and...

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  10. Which is not included in organic farming ?   (A) Changes in crop ...

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  11. Pollutants from man's activities like effluents from the industries an...

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  12. By which, from the following radiation waste not arises ?

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  13. Which of the following is an example of biodegradable waste ?

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  14. The nearest to the earth : ............: At the height of 50 kms from ...

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  15. A: Photochemical smog should be eliminated to control air pollution. ...

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  16. Which of the following is not a recyclable material ?   (A) Paper ...

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  17. Used water and waste substances that are produced by human bodies is k...

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  18. Which of the following process is found in the primary stage of remova...

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  19. When the BOD in water increases than the level of O(2) .......

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  20. It is a effect of water logging in the soil :

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