Question

What are the cause of water pallutoin in rivers and lakes
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Answer 1

Answer:

the cause of water polllution in river  and lake :-

1. water can be poisnois

2. this is halmful for us

Explanation:

Answer 2

Sewage and Waste water.....

Sewage, garbage and liquid waste of households, agricultural lands and factories are discharged into lakes and rivers.. These wastes contains harmful chemicals and toxins which make the water poisonous for aquatic animals and plants.....