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
Are you planning a vacation? If you like hot and extremely dry summers, go to Phoenix, Arizona. For hot temperatures but lots of
Are you planning a vacation? If you like hot and extremely dry summers, go to Phoenix, Arizona. For hot temperatures but lots of
admin
2014-08-25
37
问题
Are you planning a vacation? If you like hot and extremely dry summers, go to Phoenix, Arizona. For hot temperatures but lots of rain and thunderstorms, try Miami, Florida. If you want average temperatures and rainfall, St. Louis, Missouri, is the spot. Or if you’ re a cold weather fan, head to Fairbanks, Alaska. Its winters are very cold with little precipitation. Each of these cities has a certain type of weather. The average weather for a place over many years is called climate, and in no two places in the world is it exactly the same. How can this be?
Many things in nature, such as sunshine, temperature, and precipitation, affect climate. Nearness to mountain, oceans, and large lakes affects it too. Another factor is altitude, or height above sea level. Air cools as altitude increases. So a city at a higher altitude may be colder than one at a lower altitude. Finally, winds affect climate. They move heat and moisture between the oceans and continents. Winds keep the tropics from overheating. They keep the polar regions from getting overly cold.
Climate changes over long periods of time. Some scientists think, for example, that the earth’ s climate changed at the time of the dinosaurs. They think the dinosaurs died because of the change. What causes a climate to change? One possible cause may be changes in the sun. Sunspots, for example, are cool, dark spots that form on the sun. Sunspots may decrease precipitation on the earth and cause unusually dry periods. Changes in the atmosphere may change climate too. Volcanic eruptions, for instance, release solid particles into the air. These particles may form a cloud that blocks out the sun’ s heat. Human activity is another cause of climate change. Air pollution and the reduction of forest cover may have long-term effects on climate.
This passage is concerned with things that affect______.
选项
A、precipitation
B、climate
C、altitude
D、sunspots
答案
B
解析
整篇文章都在讲述影响气候的因素。
转载请注明原文地址:https://jikaoti.com/ti/wtaYFFFM
0
成人本科学位英语
相关试题推荐
Only11people______theshipwreck.
Hefailedhisexam,______provedthathewasn’tworkinghardenough.
Giraffeshave(eyes)thatallowthem(seeing)inalldirectionswithout(twisting)their(heads).
Thousandsofyearsago,inthemiddleofanocean,milesfromthenearestisland,anunderseavolcanobrokeout.Thehotliquid
ThenumberofInternetusersinChinahasincreasedby28percentand【C1】______87million,accordingtoa【C2】______released
ThenumberofInternetusersinChinahasincreasedby28percentand【C1】______87million,accordingtoa【C2】______released
他起得很早为的是赶上第一班公共汽车。
如果让我来决定我们是要一个没有自行车的城市,还是要一个没有汽车的城市,我会毫不犹豫地选择后者。
由于缺乏资金,他们正在想办法吸引外资。
南方和北方之间于1861年爆发的那场战争被称为“美国内战”。
随机试题
心跳、呼吸骤停时心电图表现可为
房地产投资的特点包括()。
某咨询企业接受了2个业务的咨询,一个是能填补市场空白的特种钢板加工项目,一个是科技领先性项目。其中,工业加工项目是属于核准范围的项目,该企业还准备接受该项目的后评价的咨询任务。在前期咨询时,市场需求预测拟分别采用回归模型作短期预测,弹性系数法作近
某上市公司拟投资新建一个生产项目,委托甲咨询公司开展可行性研究,通过比较A、B两个厂址方案的建设条件、建设投资和运营费用,甲咨询公司推荐了B方案。B方案总建设占用用地面积为100000m2,总建筑面积为150000m2,建(构)筑物及堆场总占地面积为300
项目处在一个不断发展变化的环境之中,因此项目本身也难免发生各种各样的变化,这些变化和修改就是变更。变更发生在项目的范围、进度、质量、费用、风险、人力资源、沟通以及合同等各个方面,并会对其他方面产生一定的影响。其中范围变更的请求可能由不同的来源提出,以不同的
学校中常见的期末考试属于()。
当x>a时,作换元x=acht,t>0,则有t=[*]dx=asht.x2一a2=a2sh2t.故有[*]当x<一a时,令x=一u,则u>a,按上述结果有[*]总之,都有[*]
在SQL语言中,修改基本表的语句是
执行下列语句段后,输出字符“*”的个数是()。for(inti=50;i>1;i-=2)cout<<’*’;
ThethirdofMarch,1887,threemonthsbeforelwassevenyearsold,wasthemostimportantdayIrememberinallmylife.Onth
最新回复
(
0
)