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Environmental Issues
Question
Eutrophication is often seen in
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fresh water lakes
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Ocean
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Mountains
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deserts
Solution
B.
Ocean
Eutrophication is a nutrient enrichment of water body resulting in increased growth of algae, other plants and animals. It is often seen is fresh water lakes. Actually, it is the natural ageing of a lake by biological enrichment of its water.
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Some More Questions From Environmental Issues Chapter
The cause of acid rain is :
Which one of the following causes ozone depletion ?
What disease is caused due to consumption of fishes captured from water contaminated with mercury ?
Which one of the following is not a green-house gas ?
Which gas contributes the maximum in global warming ?
Fill in the blanks with suitable words :
1. Increase in concentration of soluble salts in the soil is called.........
2. Aforestation can check the advancement of......... .
3. DDT is a serious pollutant as it is a.........pollutant and undergoes......... .
4 .........plant has become a troublesome weed in agricultural fields.
5 .........are major aerosol pollutant present in jet aircraft emission.
Write “True” or “False” :
Coin one word for the following statements :
Discarded computer parts like monitors, key boards, mouse etc.
Coin one word for the following statements :
Degradation of organic waste by worms like red wigglers, white worms and earthworms.
Coin one word for the following statements :
Cleaning of vast areas covered by forests.
Mock Test Series
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