Question

4. Pollution of river water can be reduced if
(a) chemical fertilisers are used for increasing production of crops
(b) farmers use sprinklers for irrigating their fields
(c)
water is allowed to stagnate around the river banks
(d) people do not wash clothes or bathe their cattle in rivers​

Answer 1

Answer:

(a) chemical fertilisers are used for increasing production of crops

hope it help uh friend❤

Answer 2

Answer:

a)

Explanation:

because of chemical fertilizers