The atmosphere and ozone on Earth is needed in order for us to survive. The atmosphere, a couple of miles wide, is divided into several parts, the stratosphere, mesosphere, troposphere, thermosphere, and the ozone layer. The ozone layer is a thin layer of ozone in the atmosphere. It is a very important part of life. The ozone layer is 19 - 48 kilometers above the earth. The ozone layer prevents ultra-violent rays that come from the sun from reaching the surface. CFCs are destroying the ozone layer.

One of the most important things to the survival of ancient civilizations was a fire. But, they would have never been able to start a fire because in order to light a fire, you need oxygen, which is a component of air.

Air pollution can hurt you and all the wildlife. In air pollution, you will learn what causes air pollution and the consequences.

Air Pollution
There are many types of air pollution. Get an overview about each type.

Acid Rain
This type of air pollution can kill fish and trees and damage our buildings.

Automobiles
Cars release carbon dioxide and other pollutants into the air.

The Ozone Layer & CFCs
The ozone layer has been severely damaged by our use of CFCs.

Our Factories
Factories are another major source of air pollution.