4. Write the effects of water pollution.In points
Answers
Answer:
Effects
1) On aquatic life
2)Diseases like diarrhea
3)Skin rashes
4)Choking of drains
5)Disturbs the food chain
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Answer: 1. disorders: some pollutants like sodium can cause cardiovascular diseases while lead and mercury cause nervous disorders.
2. toxic substances; DDT is toxic material which can cause chromosomal changes.
3. sewage : emptying the drains and sewers in fresh water bodies which can cause water pollution. the problem is severe in cities.
4. synthetic detergents: synthetic detergents are used in washing and cleaning produce foam and pollute water.
5. waste heat: waste heat from industrial discharges increase the temperature of water bodies and affects distribution and survival of sensitive species.
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