首页
登录
职称英语
In general terms, the greenhouse effect, which has been studied with wary a
In general terms, the greenhouse effect, which has been studied with wary a
游客
2024-10-09
29
管理
问题
In general terms, the greenhouse effect, which has been studied with wary and keen interest for as long as a century, has to do with a gradual warming of the earth’s atmosphere. The warming is caused by an increase in the amount of carbon dioxide in the air around us; the CO2 holds heat from the sun instead of letting it be radiated back into space. The more of it in the atmosphere, the more difficult it is for the heat to escape.
CO2 in huge amounts is constantly being released into the atmosphere by the burning of fossil fuels for energy, especially coal. In the last 25 years the concentration of CO2 has risen from about 315 parts per million to 340. Not much, you might say if you are used to dealing with such delicate chemical relationships as the right blend of vermouth and gin. But this is a significant rise, and some conservative experts believe that by the third quarter of the next century, say, 2065, the concentration will have doubled. Others say the doubling will come sooner, in less than 50 years; all agree the CO2 content will keep going up.
The climatic effects of that kind of change are potentially tremendous. Temperatures would rise everywhere. According to the EPA (Environmental Protection Agency) projections, the global average temperature could go up about 3.6’ F by 2040, and as much as 9’ F by the year 2100, giving the New York of that sultry time a climate, in the words of an EPA spokesman, "like Daytona Beach, Florida Farming conditions in some chilly places that now have a very short growing season would be better, and some desert regions would get plentiful rainfall. But many areas now fruitful would be hurt. Our own Midwest would probably suffer more frequent and punishing drought, and land now dependent on irrigation would lose its sources of water. The temperature increases would cause large-scale melting of ice near the poles and a rise in the sea level of about two feet in the 100 years-just for openers-with the tides of the future quite possibly necessitating "a gradual retreat to higher ground. ’ Noah, can you spare a line? [br] The author writes the passage to tell the reader ______.
选项
A、what is the greenhouse effect
B、how serious the greenhouse effect would be
C、it is important to reduce the use of fossil fuels
D、how to change the greenhouse effect
答案
B
解析
第一段谈到A,但不是全部内容,C,D未谈及,因此选B。
转载请注明原文地址:https://tihaiku.com/zcyy/3793950.html
相关试题推荐
Ifonlythecommittee______theregulationsandputthemintoeffectaspossible.
Ingeneralterms,thegreenhouseeffect,whichhasbeenstudiedwithwarya
Ingeneralterms,thegreenhouseeffect,whichhasbeenstudiedwithwarya
Whatistheconcernofordinarypeopleaboutthegreenhouseeffect?[br][origi
Whatistheconcernofordinarypeopleaboutthegreenhouseeffect?[br][origi
Whatistheconcernofordinarypeopleaboutthegreenhouseeffect?[br][origi
Itisgenerallybelievedthatthegreatestdamageofoldageisthelosso
Itisgenerallybelievedthatthegreatestdamageofoldageisthelosso
Itisgenerallybelievedthatthegreatestdamageofoldageisthelosso
Henningstudiedhow______studentsremembervocabularywhilelearningEnglish
随机试题
TextbooksintheU.S.aresoexpensivethatevenusedversionscangivestud
Menhavetraveledever【C1】______theyfirstappearedontheearth.【C2】_____
Findthemissingnumber.[img]2021m3x/ct_ve01004001m_eyyjsaiq_0407_202103[/img]8
一般在固定表演舞台的大型场馆举办文化活动应首先搭建一个临时基础舞台,临时搭建的机
在原发性免疫缺陷病中,存在不同程度免疫球蛋白/抗体缺陷的大致比例是A.80%
关于签订理财规划服务合同,说法错误的是()。A:签订理财规划服务合同应以理财规划
能有效度量员工是怎样认识和评价其工作内容的方法是()。A.员工满意度调查 B
以下对母系氏族公社时期的表述不正确的是( )A.社会生产力低下 B.氏族首领
T市是全国老工业城市,长期以来基础设施建设滞后、能源结构单一、环保历史欠账较多,
(2013年真题)华松公司在其五年发展战略中确立了以下目标:(1)降低产品成本,
最新回复
(
0
)