Question

class 7/ geography/ chapter river...influence of river in our life​

Answer 1

Answer:

Explanation:

Pollution enters the river, sometimes in small amounts, at many different locations along the length of the river. ... Sewage and effluent are discharged into rivers in some areas. Pollution can lower the pH of the water, affecting all organisms from algae to vertebrates. Biodiversity decreases with decreasing pH.

Answer 2

Answer:

water is life and river being the most imp source of water, is the life line for human being