首页
登录
职称英语
Biologist know that some marine algae can create clouds by producing the gas dim
Biologist know that some marine algae can create clouds by producing the gas dim
游客
2025-02-20
32
管理
问题
Biologist know that some marine algae can create clouds by producing the gas dimethyl sulphide (DMS), which reacts with oxygen in air above the sea to form solid particles. These particles provide a surface on which water vapor can condense to form clouds. Lovelock contends that this process is part of global climatic-control system. According to Lovelock, Earth acts like a super organism, with all its biological and physical systems cooperating to keep it healthy. He hypothesized that warmer conditions increase algal activity and DMS output, seeding more clouds, which cool the planet by blocking out the Sun. Then, as the climate cools, algal activity and DMS level decrease and the cycle continues. In response to biologists who question how organisms presumably working for their own selfish ends could have evolved to behave in a way that benefits not only the planet but the organisms as well, cooling benefits the algae, which remain at the ocean surface, because it allows the cooled upper layers of the ocean to sink, and then the circulating water carries nutrients upward from the depths below. Algae may also benefit from nitrogen raining down from clouds they have helped to form. [br] According to the passage, which of the following occurs as a result of cooling in the upper layers of the ocean?
选项
A、The concentration of oxygen in the air above the ocean’s surface decreases.
B、The concentration of DMS in the air above the ocean’s surface increases.
C、The nutrient supply at the surface of the ocean is replenished.
D、Cloud formation increases over the ocean.
E、Marine algae make more efficient use of nutrients.
答案
C
解析
根据第七句,海洋上层降温后,水发生循环,底层的营养会被带到上层。因此C正确。
转载请注明原文地址:https://tihaiku.com/zcyy/3965067.html
相关试题推荐
Nonviolentdemonstrationsoftencreatesuchtensionsthatacommunitythathasc
Justastheauthors’bookoneelsisoftenakeytextforcoursesinmarinevert
Somebiologistsarguethateachspecificallyhumantraitmusthavearisengradua
Whereasbiologistsmustmaintaina(i)_______attitudetowardthesubjectsofth
Createdtoserveasperfectlyaspossibletheirworkaday(i)____,thewoodensto
DavidBelasco’s1912BroadwayproductionofTheGovernor’sLadycreatedase
Biologistshavelongdebatedaboutwhethereggproductioninbirdsisbiolog
Marineecosystemscertainlyhavelesspermanencethanterrestrialecosystems
Massiveprojectilesstrikingmuchlargerbodiescreatevariouskindsofcrat
Massiveprojectilesstrikingmuchlargerbodiescreatevariouskindsofcrat
随机试题
Meteorologistsroutinelytelluswhatnextweek’sweatherislikelytohe,and
Itwasnotuntillongafterwards______(她怀疑自己是否犯了个错误).thatshewonderedifshe
[originaltext]W:Youarelateagain!We’vebeenexpectingyouforanhour.For
小学信息技术《建立文件夹》
关于哌替啶的叙述,错误的是()A.镇痛作用比吗啡弱 B.可引起便秘
社会工作督导的类型包括()A.师徒式督导 B.训练式督导 C.管理式督导
以下关于利率期货的说法,正确的是( )。A.中金所国债期货属于短期利率期货品种
“一带一路”建设的重要保障是()。A.政策沟通 B.贸易畅通 C.资
2013年7月9日16时,驾驶员甲驾驶装满液氯的槽罐车驶入某高速公路S段。18时
有先兆偏头痛最常见的先兆是( )。A.增动先兆 B.听觉先兆 C.视觉先兆
最新回复
(
0
)