2. Pollution is divided into three
parts:
Pollution in the air
Pollution in the water
Pollution in the land

3. Pollution in the air :
The pollution in the
air can be caused by
the smoke from the
factories, also from
cars and other things
.

4. Pollution in the water
It can be caused
by some factors
like chemical
compounds ,oil ,
and garbage.

5. Pollution in the land
The pollution in the
land can be caused
by the garbage that
the people throwin
the floor and it can
caused the erosion in
the land

6. 




Chemicals wastes
Noise
Heat
Light
Etc..

7. The pollution sources can be grouped into
two categories :
 Point source:
Is a specific pollution source that can be
identified.
 nonpoint source:
Is widely spread and cannot be tied to a
specific origin.