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Environmental Issues

Question

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WHO’s recommendations about the industrial noise limit is of :
105 dB
75 dB
135 dB
165 dB

Solution

B.

75 dB

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.

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