Question

Air pollution is caused by -
(a) Organic and inorganic industrial effluents discharged into rivers
(b) Presence of high proportion of sulphur dioxide, carbon monoxide and air borne particulate materials
(c) Unwanted sounds from industries, generators,saws and pneumatic and electric drills
(d) Overdrawing of ground water​

Answer 1

Explanation:

The answer is option B.

presence of high proportion of sulphur dioxide, carbon monoxide and air borne particulate materials.

Mark me brainliest