8(v)
People living in congested cities often complain of breathing problems. Visibility is also reduced due to smog.
(a) What is the type of pollution that is being referred to?
(b) What is smog?
(c) Name one harmful gas released from motor vehicles.
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(a) Air pollution
(b) Smog is a thick haze formed near the ground when smoke and other particulate pollutants of the air mix with fog. It reduces visibility and causes breathing problems.
(c) Carbon monoxide (CO)