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
2024-01-01
9
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
细节题型。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/3325287.html
相关试题推荐
WaterparticlescarriedtoaAgreatheightwillfreezeintoBiceparticlesandb
Theblueoftheseaiscausedbythescatteringofsunlightbytinyparticle
Theblueoftheseaiscausedbythescatteringofsunlightbytinyparticle
Theblueoftheseaiscausedbythescatteringofsunlightbytinyparticle
Hisfailure______greatdisappointmentstohisparents.A、forcedB、causedC、made
Theblueoftheseaiscausedbythescatteringofsunlightbytinyparticle
Theblueoftheseaiscausedbythescatteringofsunlightbytinyparticle
Theblueoftheseaiscausedbythescatteringofsunlightbytinyparticle
Theblueoftheseaiscausedbythescatteringofsunlightbytinyparticle
Hisfailure______greatdisappointmentstohisparents.A、forcedB、causedC、made
随机试题
SomeBritishsupermarketcompaniesareaskingtheirwarehouseworkerstowea
有效市场假定
A.x+y B.x C.y D.2x
酸碱紊乱类型是() A.呼吸性碱中毒 B.呼吸性酸中毒 C.代谢性碱中
多层砌体结构材料的特点有()。A、脆性大 B、抗拉能力低 C、抗剪能力高
医学与医学伦理学的关系是()A.只要技术过硬就能够实现全心全意为人民健康服务的
患者,男性,75岁,脑梗死后3年。近期渐渐出现脑衰弱综合征,情感脆弱,易伤感,失
薪酬调查的作用有( )。A.为企业调整员工薪酬水平提供依据 B.为企业调整员
下列选项中,属于企业的非流动资产的是()。A.预付账款 B.存货 C.无形及
开放式基金与封闭式基金的主要区别有()。A.基金规模的可变性不同 B
最新回复
(
0
)