The electricity produced by using the flow of water from a dam is called

A substance which cause pollution is called a

Which  is the process of removing dissolved salts from sea or ocean water?

_________ is known as universal solvent.

The continuous circulation of water in nature is called

The substance that dissolves in water are called _______________ water.

In the __________, water exists as water vapour or steam.

Solution of any substance in water is known as

____________ is used for doing some mechanical work such as running a flour mill, drawing water from a well etc.

___________ is used for removing suspended impurities in water.