Pollution refers to the contamination of Earth's land, water, or air. Land pollution occurs when chemicals from fertilizers and other sources run off into bodies of water. Water pollution is the contamination of water sources that can harm other organisms. Air pollution results from the burning of gasoline in vehicles, with higher vehicle usage releasing more pollutants into the atmosphere.

1. Pollution
Eduardo Mosquera
9 ‘A’

2. Pollution in the environment
Many environmental factors can contribute to less the ideal
conditions on Earth for people or other organism. The
contamination of Earth's land, water, or air is called Pollution.

3. Lands pollution
Pollution on lands: As populations grow and more
people need to fed, more fertilizers and other
chemicals may be used. These chemicals run off the
land, they can pollute bodies of water.

4. Water pollution
Pollution on water: The water pollution is
the contamination of bodies of water and
then these affect others organism.

5. Air pollution
Pollution in the air: The burning of gasoline releases
pollutants into the air. With more cars on the
road, more gasoline is used, so more pollutants are
released in to the air.