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When temperature increases dissolved ox...

When temperature increases dissolved oxygen of water

A

increases

B

decreases

C

remain same

D

first increases, then decreases

Text Solution

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The correct Answer is:
B
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AAKASH SERIES-ENVIRONMENTAL ISSUES-Exercise-I (Water pollution)
  1. Which of the following is called eutrophication ?

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

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  3. When temperature increases dissolved oxygen of water

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

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  5. Ganga action plan for controlling pollutionin Ganges started in

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  6. World.s most problematic aquatic weed is

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  7. Wich of the following causes biomagnifications ?

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  8. The expanded form of DDT is

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

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

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

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

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

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

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

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

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

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

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  19. What is common to both the species shown in figures A and B ?

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  20. DDT residues are rapidly passed through food chain causing biomagnif...

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