Class 10 > Science

Question

Incomplete combustion of coal and petroleum: (A) increases air pollution. (B) increases efficiency of machines. (C) reduces global warming (D) produce poisonous gases. The correct option is:
Easy

Solution

(b)(A) and (D)

Coal and petroleum combustion that is incomplete leads in increased air pollution. Carbon monoxide is a toxic gas produced by incomplete combustion of fossil fuels. In addition, it contributes to global warming.

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