Question

8. Discuss the activity by which we can understand how water in river, lakes, etc changes
when it flows through different cities or villages?​

Answer 1

Answer:

I could not give a perfect answer.

I hope it to be either precipitation or penetration.

Answer 2

Explanation:

Another type of physical pollutant is heat that may be discharged from an ... as a result of human activities can change the basic ecology of a lake or stream, often to great detriment.