导读：求阅读理解答案Population, technology and pollutionSince the beginni 求阅读理解答案Population, technology and pollutionSince the beginning of man’s life on earth, human beings haveproduced waste materials....
求阅读理解答案Population, technology and pollutionSince the beginni
求阅读理解答案
Population, technology and pollution
Since the beginning of man’s life on earth, human beings haveproduced waste materials. When the world’s population was small, this did notcause any problems. However,in the last two centuries the population hasincreased rapidly and large numbers of people have moved into towns and citiesto live. Also technology has produced new materials which nature alone cannotsafely break down. The waste materials of modern society have begun to polluteour earth more and more each year,and the result is that pollution has nowbecome a serious problem in almost every country of the world.
6.waste materials have been producedsince_____.
A.the last two centuries B.ancient times C.the rapid increase in population D.thebirth of a baby
7.pollution was not a problem______.
A.when technology produced new types of materials B.when the world’s population was small C.afterpeople began to move into towns and cities D.in the last two centuries
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