How does the flow of acid rain into a river make the survival of aquatic life in a river difficult ?

Acid rain water flowing into a river affects aquatic life by:

In which type of river survial of aquatic animals is difficult?

What happens when acid rain flow into rivers?

Acid rain pollutes water bodies and harms aquatic life.

The flow of water of river at banks is slow than at middle of river .Explain .

How do the acid rains influence the aquatic life ? What is our main responsbillty in safeguarding the aquatic life ?