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
43
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、air swirls
B、moisture
C、rainfall
D、sinking air
答案
D
解析
转载请注明原文地址:https://kaotiyun.com/show/7Axd777K
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
Readingtooneselfismodemactivitywhichwasalmostunknowntothescholarsoftheclassicalandmedieval(betweenAD1100and
AmericanIndiansplayedacentralroleinthewarknownastheAmericanRevolution.Tothem,however,thedisputebetweentheco
Inthe18thcentury,NewYorkwassmallerthanPhiladelphiaandBoston.TodayitisthelargestcityinAmerica.Howtoexplain
Whatwasthepurposeoftheprofessor’sexperiments?
【61】Itisawell-knownfactthatthereareconstantconflictsamongdifferentgroupsofpeople,andthatpeopletendtoblamet
Perhaps,everywomanstillrememberthisfamoussaying,"Nowomancanbetoorichortoothin."Thissayingoftenattributedto
Theenergycrisis,whichisbeingfeltaroundtheworld,hasdramatizedhowthecarelessuseoftheearth’sresourceshasbrough
Theenergycrisis,whichisbeingfeltaroundtheworld,hasdramatizedhowthecarelessuseoftheearth’sresourceshasbrough
Sharkshavegainedanunfairreputationforbeingfiercepredatorsoflargeseaanimals.Humanity’sunfoundedfearandhatredof
hatredandpassion
随机试题
评估工作的最后一道程序是()
抗原抗体反应温度适当增高时,抗原抗体反应会出现
A.LeFortⅠ型骨折B.LeFortⅡ型骨折C.LeFortⅢ型骨折D.牙槽突骨折E.纵形骨折骨折线位于根尖上方,骨折段整体活动
容易被氧化的药物有
2005年5月,某城市拟以招标、拍卖或挂牌的方式出让一宗已达到“七通一平”开发程度的国有空地,土地总面积10000平方米,批准用途为居住,使用年限70年,土地形状规则,宗地修建性详细规划主要控制指标为:2.0≤建筑容积率≤3.0,40%≤建筑覆盖率≤50%
在拌制石灰稳定土时,宜用1~3级的新石灰,其技术指标应符合规范要求,()可不经消解直接使用,块灰应在使用前完成消解。
会计核算所提供的各种信息是会计监督的依据。()
建筑物对地基的要求主要有()。
人体有四大类组织,即:上皮组织、结缔组织、肌组织、神经组织。()[江苏省2011年11月四级真题]
WhatisthepurposeofLeft-handersInternational?
最新回复
(
0
)