Question

Pick out the major reason(s) for high water contamination.

• A. Overuse of pesticides and fertilizers
• B. Treated domestic waste thrown into the expanse of water
• C. Untreated waste from industries dumped into water bodies
• D. Smokes and fumes from industries

Answer 1

Answer: (A), (C)

Untreated waste from industries dumped into water bodies

Treatment of waste is done in such a way that its output is least toxic and least contaminating. Untreated wastes from industries, domestic wastes from households and agricultural wastes like fertilizers and pesticides, all get dumped into water bodies, leading to contamination of water bodies.