BLOGGER TEMPLATES AND TWITTER BACKGROUNDS

Jumat, 03 September 2010

WHY DO SOME ANIMALS DIE OUT ?

In the past 200 years, humans have caused the extinction process speed up. The reasons are: First, people destroy animals homes as they spread over the land. Second, humans overhunt the animals. Third, humans pollute the air, water, and soil that the animals need. Finally humans bring new species of animals into certain enviorments, the animals already live there, become threatended and face extinction.