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Water
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Which of the following are the causes of water pollution?
(i) Defecating in water bodies
(ii) Disposing off idols of gods and goddesses into water bodies
(iii) Discharging industrial wastes into water bodies
(iv) Growth of phytoplankton in water bodies
AnswerClick to flip back
A
(i), (ii) and (iii)
💡 Explanation:
Phytoplanktons are photosynthesising microscopic organisms that inhabit the upper sun-lit layer of almost all oceans and freshwater bodies. Thus, growth of phytoplanktons in water bodies is not responsible for water pollution.