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Insecticides usually act upon...

Insecticides usually act upon

A

Dugestive system

B

Nervous system

C

Circulatory system

D

Muscular system

Text Solution

Verified by Experts

The correct Answer is:
B
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AAKASH SERIES-ENVIRONMENTAL ISSUES-Exercise-I (Water pollution)
  1. A test procedure based on the chemical decomposition of organic and in...

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  2. High concentrations of accumulated DDT in birds

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  3. Insecticides usually act upon

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  4. Which of the following is called eutrophication ?

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

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  6. When temperature increases dissolved oxygen of water

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

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  8. Ganga action plan for controlling pollutionin Ganges started in

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  9. World.s most problematic aquatic weed is

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  10. Wich of the following causes biomagnifications ?

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  11. The expanded form of DDT is

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

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

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

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

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

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

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

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

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

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