Question

Smog is common in winter mornings in ______.

Options

• Big cities

• Villages

• Hill stations

• All of these.

Answer 1

Smog is common in winter mornings in big cities.

Explanation:

Smog is a mix of smoke and fog and is especially common on cold, calm winter mornings when vehicle and industrial emissions are trapped near the ground; this occurs most often in cities because they produce much more smoke/soot than villages or hill stations.