The natural resources on the earth are limited, and the living space of human beings on the earth is also limited. The rapid growth of the world population and the rapid development of social economy have brought unprecedented pressure on resources and environment, and also brought a series of problems to the survival and development of mankind. In order to feed more and more people, people cut down forests, reclaim grasslands and mine minerals on a large scale, resulting in soil erosion, land desertification and industrial pollution in many places. It has caused all kinds of disasters, and the living environment of mankind has been seriously threatened. 20 12 12 2 1 is the last day of the ancient Mayan calendar, not the last day of the earth. But the film also warns people to rationally develop and utilize natural resources and protect the earth's environment-the only home for mankind.
So choose: C.