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
According to the passage, which results in less rain and lower overall humidity?
According to the passage, which results in less rain and lower overall humidity?
admin
2012-01-19
35
问题
According to the passage, which results in less rain and lower overall humidity?
For those of us lucky enough to always have enough food and water, it may be hard to imagine living through a drought. A drought occurs for a variety of reasons, usually including a lack of rainfall and high temperatures. Soil moisture severely dwindles. Why and how do these meteorological events occur?
As air swirls around the earth, it rises and sinks over different areas of the globe. When air rises it cools and loses moisture. When air sinks, it grows warmer and absorbs moisture, drying out the land. Sinking air helps to form deserts, such as the Sahara Desert in Africa.
Warm, sinking air can hamper cloud formation, which results in less rain and lower overall humidity. When these conditions occur in an area that normally receives enough rain to allow plants to grow and keep water sources replenished, a drought can ensue. The Dust Bowl that affected the prairie regions of the United States was one infamous drought. An equally severe drought occurred in the United States in the summer of 1988. Rainfall over the mid-west, Northern Plains, and the Rockies was fifty to eighty-five percent below normal.
Sometimes over-fanning and soil erosion contribute to drought, but there are also natural disasters that can occur when soil is carefully preserved. When a drought hits, there’s little that can be done to end it. Water and soil conservation can help, but until the rains come again there’s not much science can do.
选项
A、over-farming and soil erosion
B、soil moisture
C、water conservation
D、natural disasters
答案
A
解析
转载请注明原文地址:https://jikaoti.com/ti/MtasFFFM
本试题收录于:
公共英语四级笔试题库公共英语(PETS)分类
0
公共英语四级笔试
公共英语(PETS)
相关试题推荐
Imagineaworldinwhichtherewassuddenlynoemotion—aworldinwhichhumanbeingscouldfeelnoloveorhappiness,noterror
Imagineaworldinwhichtherewassuddenlynoemotion—aworldinwhichhumanbeingscouldfeelnoloveorhappiness,noterror
Mostpeoplewouldbe【21】______bythehighqualityofmedicine【22】______tomostAmericans.Thereisalotofspecialization
AmericanIndiansplayedacentralroleinthewarknownastheAmericanRevolution.Tothem,however,thedisputebetweentheco
Inthe18thcentury,NewYorkwassmallerthanPhiladelphiaandBoston.TodayitisthelargestcityinAmerica.Howtoexplain
【61】Itisawell-knownfactthatthereareconstantconflictsamongdifferentgroupsofpeople,andthatpeopletendtoblamet
【61】Itisawell-knownfactthatthereareconstantconflictsamongdifferentgroupsofpeople,andthatpeopletendtoblamet
Itishardtotrackthebluewhale,theocean’slargestcreaturewhichhasalmostbeenkilledoffbycommercialwhalingandisn
Aone-monthsurveyresultsindicatethatsmoking,alcoholandmarijuanauseincreaseamongresidentsofManhattanduringthefiv
In1942,theHMSEdinburghwassunkintheBarentsSea.Itwasonits【21】______backtoBritainwithninety-oneboxesofRussian
随机试题
某公司为上市公司,根据我国《公司法》,下列情形中,该公司应召开临时股东大会的是()。
对胃肠道运动的叙述,错误的是
有关护理学任务、研究范围的描述正确的是
A.洗肉水样腹泻,伴发热、腹痛,无里急后重B.腹泻,黏液脓血样便,伴发热,腹痛,里急后重C.腹泻,大便呈果酱状,伴低热,腹痛,无里急后重D.腹泻,米泔样大便,无发热,无腹痛及里急后重E.发热,脐周痛,腹泻,大便呈水样,有少量黏液细菌性痢
药事管理的意义是
犯罪嫌疑人高某涉嫌抢劫,郑律师接受高某的委托担任其辩护人,郑律师如果想对现场目击证人杜某就高某抢劫的事实进行调查,必须经过谁的同意?()
下列关于招标代理机构的表述,错误的是()。
在对低值易耗品进行评估时,应考虑的主要因素有()。
下列项目中不允许扣除进项税额的是()。
战胜:困难
最新回复
(
0
)