First slide

Air Pollution and its Control

Question

The pollutant responsible for decrease in white moth population during industrial revolution could have been prevented by the

Moderate

A

electrostatic precipitator.
B

catalytic converter.
C

incinerator.
D

green muffler.

Solution

Electrostatic precipitators are used to get rid of particulate matter like soot. During the initial days of industrial revolution, coal was used as fuel by many industries. Smoke and soot were the major pollutants. The soot covered trees could not give the advantage of camouflage to white moths and hence they were spotted by the predators and eaten away. So, their numbers dwindled.

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