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Secondary Sector : Industry — Economics STD 9 — Question

ICSE BoardEnglish MediumSTD 9EconomicsSecondary Sector : Industry2 Marks
Question
Explain the meanings of
(a) Air pollution
(b) Water pollution
✓

Answer

(a) Air pollution Air pollution is defined as excessive concentration of foreign matter with air which causes damage to the eco-system (or environment).
(b) Water pollution Water pollution is defined as addition of some substances which degrade the quality of water such that it becomes unfit for use and health hazards.

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