First slide

Water Pollution and its Control

Question

Water pollution can be stopped best by

Easy

A

treating effluents to remove injurious chemicals
B

rearing more fishes
C

cultivating useful water plants
D

spraying with DDT

Solution

Water pollution is the contamination of water bodies (e.g. lakes, rivers, oceans, aquifers and groundwater) by chemical, physical, radioactive or pathogenic microbial substances. This form of environmental degradation occurs when pollutants are directly or indirectly discharged into water bodies without adequate treatment to remove harmful compounds. Water pollution can be stopped best by treating effluents to remove injurious chemicals.

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