Give one example of an activity which make the river water dirty.

A small water body is called

What kind of plants grows around the river?

A clean looking water may contain

The dirty water looks

One of the best and simple method of cleaning water

Huge flow of water on an area which is usually dry in

When we see a river from far it will appear _______ in colour.

Give an example of these which don’t dissolve in water.

Longest river in the world is