One reason is because of water pollution. Water pollution is when their food get polluted by oil spills and other kind of pollution. Some of the animals that the polar bear eats live in the water pollution . And polar bears eat those animals and they die. Another reason is because of hunters.
Hunters kill polar bears for their fur to make coats and rugs.
It was fun to study about the polar bear. We learned a lot from the books we read. We will never forget this project. The polar bear's habitat, body, and the reasons it is endangered are very interesting. We used library books, encyclopedias, the internet and CD-Rom.