首页
登录
职称英语
The blue of the sea is caused by the scattering of sunlight by tiny particle
The blue of the sea is caused by the scattering of sunlight by tiny particle
游客
2024-01-02
28
管理
问题
The blue of the sea is caused by the scattering of sunlight by tiny particles suspended in the water. Blue light, being of short wavelength, is scattered more efficiently than light of longer wavelengths. Although waters of the open ocean are commonly some shade of blue, green water is commonly seen near coasts, especially in tropical or subtropical regions. This is caused by yellow pigments being mixed with blue water. Phytoplankton are one source of the yellow pigment. Other microscopic plants may color the water brown or brownish-red. Near the shore, silt or sediment in suspension can give water a brownish hue. Outflow of large rivers can often be observed many miles offshore by the coloration of suspended soil particles.
Marine phytoplankton (Greek for "plant wanderers") are microscopic single-celled plants that include diatoms, dinoflagellates, coccolithophorids, green algae, and blue-green algae, among others. The growth of these organisms, which photosynthesize light, depends on a delicate balance of nutrient enrichment via vertical mixing, which is often limited by the availability of nitrogen and light. Diatoms are one-celled plants with patterned glass coverings. Each glass, or silicon dioxide box, is ornamented with species-specific designs, pits, and perforations making them popular with microscopists and, more recently, electron scanning microscopists. [br] What can give waters a brownish hue near the shore?
选项
A、Sediment.
B、Phytoplankton.
C、Blue pigment.
D、Diatoms.
答案
A
解析
见文章第一段倒数第二句:Near the shore,silt or sediment in suspension can give water a brownish hue.靠近岸边的地方,水中悬浮的淤泥和沉淀物使得海水呈褐色。选项A正确。
转载请注明原文地址:https://tihaiku.com/zcyy/3326234.html
相关试题推荐
Althoughsunlightappearswhite,______actuallyacombinationofallthecolorso
Theblueoftheseaiscausedbythescatteringofsunlightbytinyparticle
Theblueoftheseaiscausedbythescatteringofsunlightbytinyparticle
Theblueoftheseaiscausedbythescatteringofsunlightbytinyparticle
Onesymptomofthediseaseisahighfever.A、symbolB、signC、causeD、painB名词辨析s
Theblueoftheseaiscausedbythescatteringofsunlightbytinyparticle
Theblueoftheseaiscausedbythescatteringofsunlightbytinyparticle
Theblueoftheseaiscausedbythescatteringofsunlightbytinyparticle
ThedenseBelgianfogsiscausedbythecoolingofhumidsurfaceairtoarelati
Thestormhascaused______tothisregion.A、manydamagesB、muchdamagesC、muchda
随机试题
[originaltext]W:Who’syournewsecretary,Tom?M:MissLisa.I’mverypleased
WhySustainableBuildingsNeedtoFocusonCommunityAndCollaboration?[A]
[originaltext]Ilovetreesbecausetheyhavemanydifferentshadesofgreen
A、unoriginalB、inaccurateC、offensiveD、obscureE、speculativeB
俗话说“民以食为天”。【T1】饮食文化,即围绕着人们日常工作中的食物、饮料及其食用方法所形成的文化现象。(centeron)从半坡村文化遗址
允许双向传输,但一个时刻下只允许一个方向传输的是()。A.双工 B.全双工
Ⅱ型呼吸衰竭早期可出现A.水肿 B.头痛头胀 C.昼眠夜醒 D.昏迷 E
数值型数据离散程度的测度指标有( )。A.极差 B.中位数 C.标准差
(2018年真题)根据公司法律制度的规定,下列主体中,有资格提出上市公司独立董事
承包人应在知道或应当知道索赔事件发生后()天内,向监理人递交索赔意向通知书
最新回复
(
0
)