Question

Smog is the air pollutant which:

• A. reduces visibility.
• B. causes asthma.
• C. can neither cause asthama nor reduce visibility.
• D. causes asthma and reduces visibility.

Answer 1

The correct option is D causes asthma and reduces visibility.

Smog is the air pollutant formed by the mixture of fog and smoke released from steel or mining industries. It causes asthma and also reduces visibility. Smog is also seen in cities due to its formation from the smoke released by automobiles.