英語翻譯
As world population becomes denser,we will feel greater pressure from the expanding number of people.Some experts argue that we are approaching the limit of the number of people the earth can support adequately,and they feel we should turn to compulsory birth control.Other authorities feel that if birth control is imposed on the population,the future of mankind would be seriously jeopardized.They think that very intelligent people would be more likely to have fewer children and this would bring about a lowering of the general level of intelligence in the population as a whole.However some critics see a fallacy in this argument.In addition to genetics,they say,intelligence depends on an adequate diet,a good home environment,parental attention,and education-all of which are increasing in the world as the general population becomes more affluent.