人口增长对野生动物的影响
关于人口的英语作文

        From these graphs, we can draw a conclusion that, with the growth of human population, the number of species has decreased rapidly in America, and some species have even vanished from our planet. 　　Why does this phenomenon appear? There are several possible reasons for this. Above all, as the human population grows rapidly, a growing number of people came to live where some wild specie    （共 1309 字）     [阅读本文] >>