Question

short definition OF SEDIMENTATION ,EVAPORATION, AIR POLLUTION,DECANTATION .

Answer 1

Hola friend....

1.) SEDIMENTATION:-The natural process in which material (such as stones and sand) is carried to the bottom of a body of water and forms a solid layer....

2.) EVAPORATION :- The conversion of water into water vapours on heating.

3.) AIR POLLUTION:- The air containing particles of poisonous matter harmful to us.

4.) DECANTATION:-Decantation is a process for the separation of mixtures of immiscible liquids or of a liquid and a solid mixture such as a suspension.

Hope it helps...!!!<3

Answer 2

sedimentation the process by which the heavier components of a mixture settle down.
evaporation the type of vaporization which occurs on the surface of a liquid and changes to gaseous phase.
air pollution the presence into the air of a substance which has harmful or poisonous effects.
decantation when the water along with dust is removed this process is called as decantation