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
财经
When we analyze the salt salinity(盐浓度)of ocean waters, we find that it varies only slightly from place to place. Nevertheless, s
When we analyze the salt salinity(盐浓度)of ocean waters, we find that it varies only slightly from place to place. Nevertheless, s
admin
2015-02-08
58
问题
When we analyze the salt salinity(盐浓度)of ocean waters, we find that it varies only slightly from place to place. Nevertheless, some of these small changes are important. There are three basic processes that cause a change in oceanic salinity. One of these is the subtraction of water from the ocean by means of evaporation. In this manner, the salinity is increased, since the salt stays behind. If this is carried to the extreme, of course, white salt would be left behind; this, by the way, is how much of the table salt we use is actually obtained.
The opposite of evaporation is precipitation, such as rain, by which water is added to the ocean. Here the ocean is being diluted so that the salinity is decreased. This may occur in areas of high rainfall or in coastal regions where rivers flow into the ocean. Thus salinity may be increased by the subtraction of water by evaporation, or decreased by the addition of fresh water by precipitation.
Normally, in hot regions where the sun is very strong, the ocean salinity is somewhat higher than it is in other parts of the world where there is not as much evaporation. Similarly, in coastal regions where rivers dilute the sea, salinity is somewhat lower than in other oceanic areas.
A third process by which salinity may be altered is associated with the formation and melting of sea ice. When seawater is frozen, the dissolved materials are left behind. In this manner, seawater directly beneath freshly formed sea ice has a higher salinity than it did before the ice appeared. Of course, when this ice melts, it will tend to decrease the salinity of the surrounding water.
In the Weddell Sea, the densest water in the ocean is formed as a result of this freezing process , which increases the salinity of cold water. This heavy water sinks and is found in the deeper portion of the oceans of the world.
Which of the following statements is TRUE according to the passage? ______
选项
A、Oceanic salinity has great effect on sea life
B、Many factors combine to cause changes in oceanic salinity
C、The movement of the water is related to the amount of salt
D、The temperature of the water has much to do with the oceanic salinity
答案
D
解析
按照出题顺序,此题考查的是海水盐度变化的第三个原因。根据第四段可知,海水冻冰后,杂质析出,因此冰下的海水比冰冻前的盐度高;冰融化后,海水盐度又会降低。所以答案为D,即海水温度与盐度有很大关系。
转载请注明原文地址:https://kaotiyun.com/show/Xtgc777K
本试题收录于:
英语题库银行系统招聘考试分类
0
英语
银行系统招聘考试
相关试题推荐
【2015中国银行】历史书法家多雅人高士,故所作能风度潇洒,韵味醇古,于笔墨以外,则有一种静穆之气,幽雅之思,为常人凡夫所不及。此即将人格移人作品之中,使之人格化,故能感人最深而为书法之上上乘也。根据这段话,作者想告诉我们()。
Whyareyouinterestedinourcompanyandthisparticularposition?
Ihadanexperiencesomeyearsagowhichtaughtmesomethingaboutthewaysinwhichpeoplemakeabadsituationworsebyblaming
Paper-markingis_________ofancientChina.
From:ChadBecker,theDirectorofPersonnelTo:EmployeesOurfinancialadvisorshavefinallyreacheda【K4】______onapla
TheHiddenPriceTagFormanysmallorrecentlyestablishedbusinesses,findingsourcesofcapitalcanbedifficult.Compani
Successisoftenmeasuredbytheabilitytoovercomeadversity.But,itisoftenthebeliefofothersthatgivesusthecourage
Africanelephantshavebeenslaughteredatalarmingrateoverthepastdecade,largelybecausetheyaretheprimarysourceofth
Cultureisoneofthemostchallengingelementsoftheinternationalmarketplace.Thissystemoflearnedbehaviorpatternschara
Ifit______forthesnow,we______themountainyesterday.
随机试题
王无罪岁,斯天下之民至焉。罪:斯:
固定矫治器中带环最常用于
大青龙汤与小青龙汤中均含有的药物是
法院对于诉讼中有关情况的处理,下列哪一做法是正确的?()
张某为偿还赌债,于2008年12月26日绑架邻居王某12岁的儿子小王,并打电话向王某索要赎金。就在王某筹措赎金并打算送往约定地点交给张某时,小王趁张某不注意逃离并向警察报案。对于本案,下列说法错误的是?()
对于房地产经纪人机构和经纪人来说,()。
李先生正在考虑投资三种共同基金。第一种是股票基金;第二种是长期政府债券与公司债券基金;第三种是收益率为8%的短期国库券货币市场基金。这些风险基金的概率分布如表3—5所示。基金的收益率之间的相关系数为0.10。根据案例,回答以下问题。如果某投
监察机关监督警务活动主要通过以下方式进行( )。
概念获得的方式包括
下列关于UNIX操作系统特性,说法错误的是
最新回复
(
0
)