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June, Dec 2016, Jan, Nov 2017 MCQs with Related Notes (in Hindi)
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mam in previous lesson u said water pollution is due to agriculture waste
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Somya surana
3 months ago
i am also having the same query
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Somya surana
3 months ago
among agricultural run off and untreated sewage which one is the largest source of water pollution in rivers?
Alok Pratap Singh
2 months ago
Agar India ki baat kare to Sewage sabse jyada responsible hooga water pollution k liye. ye question multiple times aa chuka ahi and hamesha yahi vaala correct answer raha hai. so don't confuse.
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Somya surana
2 months ago
ok