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2020 WAEC Geography Practical (a) Define atmospheric condition. (b) List four major sources of air pollutants. (c) Highlight four...

Geography
WAEC 2020

(a) Define atmospheric condition.
(b) List four major sources of air pollutants.
(c) Highlight four effects of atmospheric pollution.

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Explanation

(a) Definition of Atmospheric pollution: Release or injection of substances or energy into the atmosphere in quantities that are harmful to man, animals and plants.
(b} Major sources of air polutants: gases and particles discharged from industrial plants - Smoke from the exhaust of vehicles, marine vessels, aeroplanes and trains, - domestic fires; radio-active fall outs, gas flaring from oil fields, - Chlorofluorocarbons (CFC) from freezers and coolants; - fumes from from insecticide sprays, - fumes from herbicides, dust dust particles from surface mining/quarries, - dust storms; - bush burning; - cloud seeding; - VolcaniC eruption; noise from loud speakers, explosios from bombs, guns and artilleries; - burning of tyres.
(c) Effects of atmospheric pollution: - climate increase in Change/green house eftect, atmospheric temperature; - depletion of the ozone layer destruction of vegetation and cropsS migration/death/extinction of some animal specieS, thavwing/melting of permanent ice rising of sea level; - submergence of low-lyıng Coastlands and islands;-health hazards, e.g. lung diseases, cancers, hearing impairment, etc.; - cause of acid rain; - poor visibility; - defacing of buildings and monuments; makes rain water unfit for domestic use.


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