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Question

Gaseous pollutants can be controlled by


A
Electrostatic precipitators
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B
Pyrolysis
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C
Incineration
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D
Adsorption
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E
None of the above
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Solution

The correct option is D Adsorption
Adsorption is the phenomena where the atoms, ions or molecules from the gases, liquid and solids to a surface. It is a surface-based phenomenon and it easily absorbs the gas molecules and can reduce gaseous pollutants.
The fine particles, like dust and smoke, from a flowing gas, is separated using the force of an induced electrostatic charge through electrostatic precipitators.
Pyrolysis is a thermochemical decomposition of organic material at elevated temperatures.
Incineration is a waste treatment process that involves the combustion of organic substances contained in waste materials.
So, the correct answer is option D.

Biology

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