In the last hundred years we have poissened our planet with all kinds of dangerous chemicals. We are slowly destroying our envirement, and soon there will be nothing left of our forests and fresh water. What can goverments, companies and ordinary people do to cut down on the pollution of soil, water and air?
All living things require water. In areas where water is plentiful, there are dense forests and lots of animals. In dry regions, there is much less plant and animal life. The earth’s fresh water and ocean water are also important food sources for the world’s population. Water is a substance most people take for granted.
Many of our lakes and rivers were important sources of fresh water. But people used them as dumping grounds for wastes and sewage. This has caused them to become polluted. Polluted water is not safe for drinking, swimming, or bathing. Pollution also destroys many of the organisms that live in oceans, rivers, lakes and streams.