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Question 3 |
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State four sources of water pollution. [4 marks]
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This question was attempted by many candidates and their performance was very good. Candidates correctly stated sources of water pollution, while a few candidates mentioned mining activities as sources of water pollution.
The expected answers are as follows:
SOURCES OF WATER POLLUTION
- factory waste / industrial sewage
- human waste / domestic sewage
- agricultural pollutants (nitrates, pesticides and chemicals)
- oil spill
- mining activities
- dumping of refuse in water
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