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
自考
The Salinity of Ocean Water If the salinity of ocean water is analyzed, it is found to vary only slightly from place to plac
The Salinity of Ocean Water If the salinity of ocean water is analyzed, it is found to vary only slightly from place to plac
admin
2013-09-17
28
问题
The Salinity of Ocean Water
If the salinity of ocean water is analyzed, it is found to vary 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—conversion of liquid water to water vapor. In this manner the salinity is increased, since the salts stay behind. If this is carried to the extreme, of course, white crystals of salt would be left behind.
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 or runoff.
Normally, in tropical 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 that in other oceanic areas.
A third process by which salinity may be altered is associated with the formation and melting of sea ice. When sea water is frozen, the dissolved materials are left behind. In this manner, sea water 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 Antarctica, the densest water in the oceans 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 portions of the oceans of the world.
Which of the following is NOT a result of the formation of ocean ice?
选项
A、The salt remains in the water.
B、The surrounding water sinks.
C、Water salinity decreases.
D、The water becomes denser.
答案
C
解析
事实细节题。最后一段提到,海水结冰后海水盐度增加。因此C不正确,故选C。
转载请注明原文地址:https://kaotiyun.com/show/epAR777K
本试题收录于:
英语(二)题库公共课分类
0
英语(二)
公共课
相关试题推荐
表示数据结构中可重复项的符号是______。
产品生产与库存系统数据库E-R图如题43图所示。写出关系数据库逻辑模型,并用下划线标志主码。
Smallshopsofferproductsthatrangefrominexpensivetoexpensive,______(depend)ontheshop.
Amongthecompanywasalawyer,ayoungmanofabouttwenty-five.Onbeingaskedhisopinion,hesaid,“Capitalpunishmentandlife
Fishis______andexpensiveatthistimeoftheyearinthisarea.
Communitycollegesarenearlyalways______(public)fundedbythestate,country,orcitygovernment.
Christmastreesareusually______(decoration)withcoloredlights.
Wereceived______(value)helpfrommanystudentsinourresearch.
______(excess)exercisecansometimescausehealthproblems.
ThecowboyswholivedintheUnitedStatesofAmericabeforethereweregoodroadsorbigmoderncitiesusedtoliveonthehuge
随机试题
对卵巢黄素囊肿错误的描述是
关于扁平颗粒胶片特点的叙述,错误的是
A.心电图的P波B.心电图的QRS波群C.心电图的ST段D.心电图的Ta波E.心电图的T波代表两心房去极化过程的是()。
在分析外汇期货价格的决定时,不仅要对每个国家进行单独研究,而且应该对它们做比较研究,衡量一国经济状况好坏的因素,主要有( )。
为特定客户设计产品发生的设计费,应计入存货成本。()
构成中止导游活动的行为必须具备的条件有()。
某新兴产业在2005年末至2009末产值的年平均增长率为q,在2009年末至2013年末的年平均增长率比前四年下降了40%,2013年的产值约为2005年产值的14.46(≈1.954)倍,q约为().
HealthworkerswhoareHIVpositivearebannedfromperformingmostsurgeryordentaltreatmentincasetheycutthemselveswith
Fromthehealthpointofviewwearelivinginamarvelousage.Weareimmunizedfrombirthagainstmanyofthemostdangerousd
ShoppersintheUKarespendinglessmoneyontoiletpapertosavemoney,researchhasshown.Penny-pinchingUKconsumersch
最新回复
(
0
)