Environment pollution has indulged in the sudden decrease of numbers of some animals.In recent 100 years,as the development of industry and technology,people were sacrificing environment in order to enhance their economy,in other words,to earn more money.For example,in these years,people can hardly find any South China Tiger any more.The decreasement of the area of forest and people's hunting have made some animals disappear.
用英语来没关于动物灭绝的原因 200字