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Methane an air pollutant is produced ________.

  1. A
    by action of ultraviolet light on nitrogenous compounds.
  2. B
    as a by-product of manufacturing ammoniacal fertilizers
  3. C
    by burning of coal in insufficient air
  4. D
    by digestion of food by animals

Solution & Step-by-step Explanation

* Methane (CH
4

): It is a significant greenhouse gas and air pollutant. A major biological source of methane is enteric fermentation in ruminant animals (cattle, sheep, goats, etc.). During the digestion of food, microbes in the digestive systems of these animals break down carbohydrates, producing methane gas as a byproduct, which is then released into the atmosphere.

Burning coal in insufficient air produces Carbon Monoxide (CO).

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Try it yourself before checking the explanation above.

Methane an air pollutant is produced ________.
A
by action of ultraviolet light on nitrogenous compounds.
B
as a by-product of manufacturing ammoniacal fertilizers
C
by burning of coal in insufficient air
D
by digestion of food by animals

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