Question

　　Since the beginning of man's life on earth, human beings have produced waste materials. When the world's population was small, this didn't cause any problems. However, in the last two centuries the population has increased rapidly, and large numbers of people have moved into towns and cities to live. Also, science and technology has produce new materials which nature alone cannot safely break down. The waste materials of modern society have begun to pollute our earth more and more each year, and the result is that pollution has now become a serious problem in almost every country of the world.

　

True or false.

　

(1) There are more and more waste materials as the population has increased rapidly in the last two centuries.

(2) The waste materials of modern society have begun to pollute our earth more and more each year.

(3) The most serious problem in almost every country of the world is population explosion.

(4) The world's population has increased rapidly only in about the last two hundred years.

(5) People fail to know how serious the pollution is.

Answer 1

答案：T;T;F;F;T