Question

The leading cause of air pollution is _____. automobiles solar power furnaces cigarette smoke

Answer 1

Automobiles have they highest cost for of pollution in the air 

Answer 2

Answer: Option (a) is the correct answer.

Explanation:

The presence of harmful substances in air or environment is known as pollution.

For example, emission of smoke from automobiles releases harmful gases like carbon monoxide into the atmosphere leading to pollution.

Whereas cigarette smoke also causes pollution into the environment but out of the given options automobiles contribute greatly to air pollution.

Thus, we can conclude that the leading cause of air pollution is automobiles.