Q.

How trees help to reduce noise pollution?

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a

Trees absorb noise

b

Trees provide shadow

c

Trees keep the air fresh

d

Leaves of trees produce sound 

answer is A.

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Detailed Solution

Vegetation reduces noise pollution through a phenomenon called sound attenuation, which is the reduction of sound intensity. Normal attenuation of sound occurs as energy of sound dissipates over long distances  

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How trees help to reduce noise pollution?