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
52
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
2013年1~10月份,全国民间固定资产投资223427亿元,同比名义增长23.4%,增速比1~9月份加快0.1%。民间固定资产投资占固定资产投资的比重为63.5%(见下表)。第二产业中,工业民间固定资产投资113889亿元,同比增长21.5%,增速比
对气候变暖的治理应当是为二氧化碳找出路,而不仅仅是减少排放或简单地掩埋它。为此科学家提出富碳农业的理念,将人类活动特别是工业生产中产生的二氧化碳捕集后,以高于大气中二氧化碳含量几倍的浓度,释放在密闭的人造气候小区域中,利用相关科学技术,创造一个高效率的光合
ThenationaltabletennisteamhardtowinhonorforChinatheseyears.
ASSOCIATIoNMANAGEMENTPOLICYAllorders,returns,replacements,andcorrespondenceregardingAssociationmaterialsshouldbedi
Asarecentstudyshows,oncetheH1N1flupatients__________tohospital,theelderlyhaveahigherriskofdying.
Cross-culturalCommunicationinBusinessNegotiationsBusinessWeeklybyDr.RodSteinerNovember2006The
Thehumannoseisanunderratedtool.Humansareoftenthoughttobeinsensitivesmellerscomparedwithanimals,【C11】______this
Whenweanalyzethesaltsalinity(盐浓度)ofoceanwaters,wefindthatitvariesonlyslightlyfromplacetoplace.Nevertheless,s
Rosealwaysmocksheraccentwhichmakesherrathersad.
Ifyouhaveeverconsideredlaunchingastartup,youmayfeelthatitrequiresanall-in,100percentfocus,whichwouldmeanle
随机试题
论证有效性分析:分析下述论证中存在的缺陷和漏洞,选择若干要点,写一篇600字左右的文章,对该论证的有效性进行分析和评论。(论证有效性分析的一般要点是:概念特别是核心概念的界定和使用是否准确并前后一致,有无各种明显的逻辑错误,论证的论据是否成立并支持结论,结
A公司2013年6月发生如下业务:(1)本月生产A、B产品耗用原材料30000元,其中:A产品18000元,B产品12000元。A、B产品期初均无在产品。(2)本月计提固定资产折旧19000元,其中,生产车间固定资产应计提折旧15000元,行政
患者女性,42岁,会计,因双眼不适2年就诊。双眼矫正视力1.0,Goldmann压平眼压:左眼30mmHg,右眼25mmHg;前房角镜:宽角。正确的诊断是
原发性化学性发绀常见于
男性,52岁意识丧失1h,叹息样呼吸,颈动脉搏动消失,立即为其行胸外按压、气管插管、静脉输液、复苏药物、心电监测等措施。用药途径首选
作为理财规划师,你认为( )方式可以完全打消当事人关于财产分配方面的顾虑。
甲公司生产的B产品的主要销售市场在美国,因此与B产品有关的资产产生的预计未来现金流量是以美元为基础计算的。2016年12月31日甲公司对主要生产B产品的C设备进行减值测试。C设备系甲公司2013年12月30日购入,该设备的原价为20000万元人民币,预计使
某会议邀请10名专家参加,酒店住宿共安排了6个房间,要求甲专家与乙专家单独住一间(不再安排其他人人住),丙专家、丁专家安排住同一间,戊专家与己专家不安排在同一间。甲、乙、丙、戊、己5名专家房间均已确定,且每个房间均有2个床位,则此次住宿共有()种
•Readthetextbelowaboutjobadvertisement.•Inmostofthelines41—52thereisoneextraword.Itiseithergrammaticallyin
Today,studentswhowanttolearnEnglishintheUShaveawidechoiceofcoursesandinstitutionsto【B1】_______.And,becauset
最新回复
(
0
)