1. extinction
... have became extinct usually within ten million years after they first appeared. This in turn has contributed greatly to the current level of biodiversity on the planet. Extinction is the loss of populations of interbreeding organisms. It can be caused by habitat destruction, predation and the inability to ... the earth's surface than could exist if the atmosphere were not present. Global warming could increase an average temperature by three to eight degrees Fahrenheit by the year 2050. The higher temperatures will disrupt the biosphere to a great extent. It will raise sea levels, making ...
- Word Count: 2997
- Approx Pages: 12
- Grade Level: High School