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16/10/2020 5:59 pm
Topic starter
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 groundwater.
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16/10/2020 6:00 pm
(b) Presence of high proportion of sulphur dioxide, carbon monoxide and air-borne particulate materials.