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What is the intensity of sound during no...

What is the intensity of sound during normal conversation?

A

10-20 deciBel

B

30-60 deciBel

C

70-90 deciBel

D

120-150 deciBel

Text Solution

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The correct Answer is:
B
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AAKASH INSTITUTE-ENVIRONMENTAL ISSUES-ASSIGNMENT SECTION C
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  2. Which of the following is absent in polluted water?

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  3. What is the intensity of sound during normal conversation?

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  4. Fluoride polllution mainly affects

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  5. Escherichia coli is used as an indicator organism to determine polluti...

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  6. Lead concentration of blood is considered alarming at

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  7. Which of the following is not used for disinfection of drinking water?

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  8. Which of the following organism is likely to have more concentration o...

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  9. Climate of the world is threatened by

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  10. Which of the following contribute to green house effect?

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  11. The true statement about "greenhouse effect" is that it is caused by:

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  12. Country contributed maximum to hole formation in ozone layer is

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  13. In the coming years, skin related disorders will be more common due to...

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  14. Ozone hole is maximum over

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  15. The supersonic jets cause pollution by thinning of:

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  16. If there was no carbon dioxide in the Earth's atmosphere, the temperat...

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  17. Which important green house gas other than methane is being produc...

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  18. Green house effect refers to

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  19. Maximum green house gases are released by which of the following count...

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  20. Warm ocean surge or Peru current that recurs after 5-8 years in East p...

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