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Which of the following is absent in poll...

Which of the following is absent in polluted water?

A

Hydrilla

B

Water hyacinth

C

Larva of stone fly

D

Blue green algae

Text Solution

Verified by Experts

The correct Answer is:
C
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AAKASH INSTITUTE ENGLISH-ENVIRONMENTAL ISSUES-ASSIGNMENT SECTION C
  1. The maximum biomagnification would be in which of the following in cas...

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  2. What is B.O.D. : -

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  3. Which of the following is absent in polluted water?

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  4. What is the intensity of sound in normal conversation?

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  5. Fluoride pollutions mainly affects : -

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

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  7. Lead concentration in blood is considered alarming if it is

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  8. Which of the following is not used for the disinfection of drinking wa...

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

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  10. Climate of world is threatened by

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

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

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

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

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  15. Ozone hole is maximum over

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  16. The supersonic jets cause pollution by the thinning of

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  17. If there was no carbon dioxide in the Earth's atmosphere so the temper...

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

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  19. Green house effect is

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  20. Maximum green house gas released by which country : -

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