Question

The combustion of fossil fuels increases amount of ____, ____ and ____ in the air.

• A. nitrogen
• B. oxygen
• C. sulphur
• D. carbon particles

Answer 1

Answer: (A), (C), (D)

The correct options are
A nitrogen
C sulphur
D carbon particles

Fossil fuels contain small amounts of nitrogen and sulphur. Burning of these fossil fuels causes burning of nitrogen and sulphur. As a result, oxides of nitrogen and sulphur are produced. The amount of suspended particles in air can be increased because of burning of fossil fuels. These suspended particles mainly consist of unburnt carbon particles.
They can lead to many respiratory problems and can also lead to other problems like smog and acid rain.