Environment & Ecology · Environmental Science
The serious aspects of water pollution caused directly or indirectly by human activities include: (A) Sewage, industrial and trade wastes (B) Automobile exhaust, wood and coal burning (C) Agricultural pollutants and physical pollutants (D) Thermal and radioactive substances Choose the correct answer from the options given below:
- 1B, C, D only
- 2A, C, D only✓
- 3D, A, B only
- 4A, B, C only
Correct answer
A, C, D only
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