Question

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

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

Answer 1

Answer: (A), (D)

The correct options are
A Untreated waste from industries dumped into water bodies
D Overuse of pesticides and fertilizers

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.