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Cause of eutrophication is...

Cause of eutrophication is

A

Increase in concentration of insecticide in water

B

Increase in concentration of fluoride ion in water

C

The reduction in concentration of the dissolved oxygen in water due to phosphate pollution in water

D

Attack of younger leaves of a plant by peroxyacetyl nitrate

Text Solution

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The correct Answer is:
C
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MODERN PUBLICATION-ENVIRONMENTAL POLLUTION -COMPETITION FILE (OBJECTIVE TYPE QUESTIONS (B. MULTIPLE CHOICE QUESTIONS ))
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  2. The environmental friendly method of killing harmful insects is throug...

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  3. Cause of eutrophication is

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  4. Green chemistry means such reactions which

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  5. Which one of the following statement is not true?

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  6. Excess nitrate present in drinking water, vegetables and fruits shall ...

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  7. Which of the following is not a greenhouse gas?

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  8. Which one of the following statements regarding photochemical smog is ...

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  9. Which one of the following is not a common component of photochemical ...

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  10. Which of the following is a sink for CO?

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  11. Which oxide of nitrogen is not a common pollutant introduced into the ...

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  12. Among the following, the one that is not a green house gas is

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  13. Identify the wrong statement in the following:

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  14. The ozone layer forms naturally by the interaction of:

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  15. The maximum prescribed concentration of cadmium in drinking water in p...

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  16. (i) Which allotrope of phosphorus is more reactive and why ? (ii) Ho...

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  17. C Cl(4) and freons :

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  18. What is DDT among the following ?

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  19. The gas leaked from a storage tank of the Union Carbide plant in Bhopa...

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  20. Minamata disease is due to

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