首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
Global warming is the gradual increase of the temperature of the earth’s lower atmosphere as a result of the increase in greenho
Global warming is the gradual increase of the temperature of the earth’s lower atmosphere as a result of the increase in greenho
admin
2014-07-20
72
问题
Global warming is the gradual increase of the temperature of the earth’s lower atmosphere as a result of the increase in greenhouse gases since the industrial Revolution. The temperature of the atmosphere near the earth’s surface is warmed through a natural process called the greenhouse effect. Visible, shortwave light comes from the sun to the earth, passing unimpeded through a blanket of thermal, or greenhouse, gases composed largely of water vapor, carbon dioxide, methane, nitrous oxide, and ozone. Infrared radiation reflects off the planet’s surface toward space but does not easily pass through the thermal blanket. Some of it is trapped and reflected downward, keeping the planet at an average temperature suitable to life, about 60°F (16℃).
Growth in industry, agriculture, and transportation since the Industrial Revolution has produced additional quantities of the natural greenhouse gases plus chlorofluorocarbons and other gases, augmenting the thermal blanket. It is generally accepted that this increase in the quantity of greenhouse gases is trapping more heat and increasing global temperatures, making a process that has been beneficial to life potentially disruptive and harmful. During the past century, the atmospheric temperature has risen 1.1°F (0.6℃), and sea level has risen several inches. Some projected, longer-term results of global warming include melting of polar ice, with a resulting rise in sea level and coastal flooding; disruption of drinking water supplies dependent on snow melts; profound changes in agriculture due to climate change; extinction of species as ecological niches disappear; more frequent tropical storms; and an increased incidence of tropical diseases.
Among factors that may be contributing to global warming are the burning of coal and petroleum products (sources of carbon dioxide, methane, nitrous oxide, ozone); deforestation, which increases the amount of carbon dioxide in the atmosphere; methane gas released in animal waste; and increased cattle production, which contributes to deforestation, methane production, and use of fossil fuels.
Much of the debate surrounding global warming has centered on the accuracy of scientific predictions concerning future warming. To predict global climatic trends, climatologists accumulate large historical databases and use them to create computerized models that simulate the earth’s climate. The validity of these models has been a subject of controversy. Skeptics say that the climate is too complicated to be accurately modeled, and that there are too many unknowns. Some also question whether the observed climate changes might simply represent normal fluctuations in global temperature. Nonetheless, for some time there has been general agreement that at least part of the observed warming is the result of human activity, and that the problem needs to be addressed.
A UN Conference on Climate Change, held in Kyoto, Japan, in 1997 resulted in an international agreement to fight global warming, which called for reductions in emissions of greenhouse gases by industrialized nations. Not all industrial countries, however, immediately signed or ratified the accord. In 2001 the G. W. Bush administration announced it would abandon the Kyoto Protocol: because the United States produces about one quarter of the world’s greenhouse gases, this was regarded as a severe blow to the effort to slow global warming. Despite the American move, most other nations agreed later in the year (in Bonn, Germany, and in Marrakech, Morocco) on the details necessary to convert the agreement into a binding international treaty, which came into force in 2005 after ratification by more than 125 nations.
The result of global warming is ______.
选项
A、flooding
B、dying of animals
C、changing climate
D、All of the above
答案
D
解析
细节理解题。对应文中第二段Some projected,longer-term results of global warming include melting of polar ice,with a resulting rise in sea level and coastal flooding... and an increased incidence of tropical diseases.可知D正确。niche n.合适的环境
转载请注明原文地址:https://kaotiyun.com/show/MPTK777K
0
专业英语四级
相关试题推荐
Inthisexperiment,theyarewakenedseveraltimesduringthenight,andaskedtoreportwhatthey______.
Heusuallywritesthemostimportant______ofhislectureonthewhiteboard.
Fatcannotchangeintomuscle______changesintofat.
Atleastsomeoftheweatherextremesbeingseenaroundtheworldareconsequencesofhuman-inducedclimatechangeandcanbeex
Herearethethreemostcommonmistakeslanguagelearnersmake—andhowtocorrectthem.RigidthinkingLinguistshavefound
Throughouttheyears,musichasbeenacommonthreadthatunitesgenerationsandhadprovidedsocialcommentary,individualexpr
Severalexpertshavebeencalledintoplan______forboating,tennis,refreshmentsandchildren’sgamesintheprojectedtown
Hecouldhardly______histemperandheflewinarage.
WhatisthepossibleresultofdismantlingUnifiedEnergySystems?
Thefirecause______damagetothechurch.
随机试题
良好的种子是指种子的形态正(颗粒饱满、色泽深)、成熟而新鲜的种子。
A、圆孔B、卵圆孔C、棘孔D、茎乳孔E、破裂孔下颌神经出颅部位为
A.杂音于左侧卧位听诊最清楚B.杂音于吸气末时增强C.杂音于前倾坐位听诊最清楚D.杂音于活动后减轻E.杂音于心衰控制后减轻
个人银行存款在( )以后孳生的利息应按“利息、股息、红利所得”项目计征个人所得税。
请认真阅读下列材料,并按要求作答。根据上述材料完成下列任务:依据拟定的教学目标,设计教学过程。
一个多边形的内角和是900°,则这个多边形的边数是()。
关于我国的军衔制度,下列说法正确的是()。
电阻:是指物质阻碍电流流动的能力,它的大小和材料本身性质有关。按这个定义,下面哪种说法是错误的( )。
车主缴费纳税,在合法路权上,就算高风亮节好心让渡,亦有选择说“不”的权力;而地方交警部门只看到浩荡的“暴走团”之民意,却_______了路权主体的合法权益,如此作为,似有“懒政”之嫌疑。因为“暴走团”本不该上机动车道,而禁止“暴走团”横冲直闯,恰恰是地方交
下列关于宽带城域网技术的描述中,错误的是()。
最新回复
(
0
)