首页
财务会计
医药卫生
金融经济
考公考编
外语考试
学历提升
职称考试
建筑工程
IT考试
其他
登录
职称考试
Population Explosion A very important world problem is the increasing numbe...
Population Explosion A very important world problem is the increasing numbe...
admin
2020-12-24
83
问题
Population Explosion
A very important world problem is the increasing number of people who actually inhabit this planet. The limited amount of land and land resources will soon be unable to support the huge population if it continues to grow at its present rate.
So why is this huge increase in population taking place? It is really due to the spread of the knowledge and practice of what is becoming known as "Death Control". You have no doubt heard of the term "Birth Control". "Death Control" is something rather different. It recognizes the work of the doctors and scientists who now keep alive people who, not very long ago, would have died of a variety of then incurable diseases. Through a wide variety of technological innovations that include farming methods and the control of deadly diseases, we have found ways to reduce the rate at which we die. However, this success is the very cause of the greatest threat to mankind.
If we examine the amount of land available for this ever-increasing population, we begin to see the problem. If everyone on the planet had an equal share of land, we would each have about 50,000 square meters. This figure seems to be quite encouraging until we examine the amount of usable land we actually have. More than three-fifths of the world's land cannot produce food.
Obviously, with so little land to support us, we should be taking great care not to reduce it further. But we are not! Instead, we are consuming its "capital" -- its nonrenewable fossil fuels and other mineral deposits that took millions of years to form but which are now being destroyed in decades. We are also doing the same with other vital resources not usually thought of as being nonrenewable such as fertile soils, groundwater and the millions of other species that share the earth with us.
It is a very common belief that the problems of the population explosion are caused mainly by poor people living in poor countries who do not know enough to limit their reproduction. This is not true. The actual number of people in an area is not as important as the effect they have on nature. Developing countries do have an effect on their environment, but it is the populations of richer countries that have a far greater impact on the earth as a whole.
There isn't enough land to support human being because()
选项
A.most of the world's land is unusable.
B.there are more seas than land in the world.
C.the world's land has already been taken up.
D.the world's land is not distributed equally.
答案
A
解析
细节题。题干:没有足够的土地来支撑人类的生存,因为____。由题干关键词land 可以定位到第三段最后一句“约五分之三的土地是不能生产食物的”。由此可知,大部分的 土地资源是无法利用的。故答案为A。
转载请注明原文地址:https://ti.zuoweng.com/ti/VHpQKKKQ
相关试题推荐
GoingHerOwnWay Whenshewastwelve,Mariamadeherfirstimportantdecis...
GoingHerOwnWay Whenshewastwelve,Mariamadeherfirstimportantdecis...
Theydidn’tseemtoappreciatethemagnitudeoftheproblem.A.existenceB.caus
GoodTableManners Mannersplayanimportantpartinmakingafavorableimp...
GoodTableManners Mannersplayanimportantpartinmakingafavorableimp...
GoodTableManners Mannersplayanimportantpartinmakingafavorableimp...
Itisimportantforfamiliestoobservetheirtraditionsevenastheirchildr...
Theydidn'trealizehowserioustheproblemwas.()
Youmustshineyourshoessinceyouattendtosuchanimportantparty.()A.lighte
Manyoftheproblemspresentedbythecountry'sgeographicalfeaturesfound...
随机试题
毛泽东在《论十大关系》、《关于正确处理人民内部矛盾的问题》等著作中,明确提出要学
评价幼儿生长发育最重要的指标是()。 A.体重和头围B.头围和胸围
工程施工承包合同发生变更时,如合同中没有适用于该变更工作的费率和价格,双方经协
某人民团体A、B两栋办公楼,A栋占地3000平方米,B栋占地1000平方米。20
综合评价法是指决策者决定是否参加某建设工程监理投标时,将影响其投标决策的主客观因
下列情形中,当事人可以提起行政诉讼的有:
简述教育法律救济的途径。
关于肠梗阻的论述,下列哪种不正确 A绞窄性肠梗阻必然是急性肠梗阻 B慢性和
在检测验收时,对照设计资料检查江、河、湖、海、水库和水塘等天然水源的水量、水质是否符合设计要求,应验证其()的流量符合设计要求;地下水井的常水位、出水量...
民间非营利组织的会费收入期末无余额。