What are the causes of water pollution? Discuss how you can contribute in reducing water pollution.

Explanation

Refer to article 5,4,3., Page 235.
Preventive measures
(i) Sewage pipes should not directly open into aquatic bodies.
(ii) Garbage should not be thrown into water bodies.
(iii) Industrial wastes should not be dumped directly into water bodies.
(iv) Planting of trees should be down along the banks of water bodies to avoid soil erosion.