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
52
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、cools
B、air rises
C、deserts
D、warm
答案
D
解析
转载请注明原文地址:https://kaotiyun.com/show/z8xd777K
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
EmilyDickinsonwasanineteenth-centuryAmericanwomanwholivedherlifecompletelyunknowntoanyoneexceptherfamilyanda
Accordingtogovernmentstatistics,menofallsocialclassesinBritainvisitpubsquiteoften,【21】______thekindofpubth
Mostpeoplewouldbe【21】______bythehighqualityofmedicine【22】______tomostAmericans.Thereisalotofspecialization
WhydoscientistsplantotransmitwavesthroughthePacificOcean?
Inthe1960stheWestCoastbecameanimportantcenterforrockmusic.LosAngelesandSouthernCaliforniaarefamousforsun
Inthe18thcentury,NewYorkwassmallerthanPhiladelphiaandBoston.TodayitisthelargestcityinAmerica.Howtoexplain
Conventionalwisdomaboutconflictseemsprettymuchcutanddried.Toolittleconflictbreedsapathy(冷漠)andstagnation(呆滞).
Youareallowed35minutestowriteacompositiononthetopic:HowtoDealwithPersonalCrisis.Yourcompositionshouldcontai
Societywasfascinatedbyscienceandthingsscientificinthenineteenthcentury.Greatbreakthroughsinengineering,theuseo
Throughoutthenineteenthcenturyandintothetwentieth,citizensoftheUnitedStatesmaintainedabiasagainstbigcities.Mo
随机试题
使用VC++2010打开考生文件夹下blankl中的解决方案。此解决方案的项目中包含一个源程序文件blank1.c。在此程序中,函数fun()的功能是在带头节点的单向链表中,查找数据域中值为ch的节点。找到后通过函数值返回该节点在链表中的序号;若不存在值为
设y=e-5x,则dy=()
社会进步的根源是()。
关于Stargardt病不正确的是
如何进行计量标准的稳定性考核?
投标人根据招标文件载明的项目实际情况编制投标文件,拟在中标后将中标项目的部分非主体、非关键性工作进行_________的,应当在投标文件中载明。()
(2020年)甲公司是一家化工生产企业。生产需要X材料,该材料价格为2300元/吨,年需求量3600吨(一年按360天计算)。一次订货成本为600元,单位储存成本300元/年。缺货成本每吨1000元,运费每吨200元。材料集中到货,正常到货概率为80%。延
Whatcanbesaidofthenormalprocessofaging,fromalinguisticpointofview?Ingeneral(1)_____,thereisaclearand(2)_
10GB的硬盘表示其存储容量为()。
DuringtheTVinterview,thesingerannouncedthathewasgoingto______hisnewalbumsoon.
最新回复
(
0
)