What is the impact of river on human activities (eg.farming)?

Question

What is the impact of river on human activities (eg.farming)?

Answer 1

you mean the impact of human activities on rivers. Farmers for example use many pesticides and these pesticides usually runoff into the river system polluting it, and destroying the aquatic life that lives in it.

Answer 2

Rivers provide water for farming, drinking, bathing etc.  There is no life without water and hence rivers provide the necessary life line.  The farming without rivers or on the mercy of God.  Where as river water can be utilized as per the requirements of the irrigation facitities.