Air pollution is caused by:

A. The smoke, gases and fumes coming out of the factory chimneys
B. The transport vehicles badly pollute the air

C. Both (a) & (b)

D. None of these
Air pollution is caused by: | Both (a) & (b) | CSS, PMS, PPSC, FPSC, KPPSC, SPSC, ISSB and NTS Past Papers | Pakistan's Largest Online Past Papers Database

Leave a comment