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Which of the following is called eutroph...

Which of the following is called eutrophication ?

A

Deterioration of water quality due to organic matter

B

Deterioration of water due to accumulation of algae

C

Improvement in quality of water due to dissolved oxygen

D

Deterioration of water quality of water body because of enrichment with nutrients

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The correct Answer is:
D
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AAKASH SERIES-ENVIRONMENTAL ISSUES-Exercise-I (Water pollution)
  1. High concentrations of accumulated DDT in birds

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  2. Insecticides usually act upon

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  3. Which of the following is called eutrophication ?

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  4. Thermal pollution of water bodies is due to discharge of

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  5. When temperature increases dissolved oxygen of water

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  6. Realizing the importance of maintaining the cleanliness of the water b...

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  7. Ganga action plan for controlling pollutionin Ganges started in

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  8. World.s most problematic aquatic weed is

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  9. Wich of the following causes biomagnifications ?

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  10. The expanded form of DDT is

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  11. The green scum seen in the fresh water bodies is

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  12. Match correctly the following and choose the correct option . {:(" ...

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  13. Which one of the following impurities is easiest to remove form waste ...

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  14. Which one of the following diseases in not due to contamination of wat...

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  15. Nuisance growth of aquatic plants and bloom-forming algae in natural w...

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  16. Algal blooms impart a distinct colour to water due to

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  17. Escherichia coli is used us an indicator organism to determine polluti...

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

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

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

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