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
2025-02-02
13
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] The growth of phytoplankton is often limited by the availability of ______.
选项
A、oxygen
B、hydrogen
C、nitrogen
D、carbon dioxide
答案
C
解析
细节题型。见文章第二段第二句: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.所以选项C正确。
转载请注明原文地址:http://tihaiku.com/zcyy/3939849.html
相关试题推荐
Theblueoftheseaiscausedbythescatteringofsunlightbytinyparticle
Theblueoftheseaiscausedbythescatteringofsunlightbytinyparticle
Theblueoftheseaiscausedbythescatteringofsunlightbytinyparticle
ThedenseBelgianfogsiscausedbythecoolingofhumidsurfaceairtoarelati
Besidestheelectrons,anatomalsocontainspositiveelectricalparticles______
Onesymptomofthediseaseisahighfever.A、symbolB、signC、causeD、painB名词辨析s
Twomajorreasonshavecausedthis______:lackofinteractionandcommunication
Hisfailure______greatdisappointmentstohisparents.A、forcedB、causedC、madeD
Thelenientdecisionofthedeancausedangeramongtheprofessors.A、correctB、u
Doctorswarnedsun-starvedtouristswhoreceivedtoomuchsunlightthattheywer
随机试题
TheGeneralElectricCompany,oftencriticizedforthecomplexityofitsstr
Onemanwastomeethiswifedowntownandspendsometimeshoppingwithher.
Cooperationisthecommonendeavoroftwoormorepeopletoperformatasko
[originaltext]M:Hey,Linda.WelcometoourCampusBroadcastingStudio.Todayw
A.Ⅰ期的手功能 B.Ⅱ期的手功能 C.Ⅲ期的手功能 D.Ⅳ期的手功能
银行建立的内部审计管理体系应当独立垂直,审计预算、人员薪酬、主要负责人任免由()
下列关于会计师事务所的说法中,不正确的是()。A.会计师事务所经济上依赖国
爆炸性气体环境应根据爆炸性气体混合物出现的频繁程度和持续时间进行分区,“连续出
男性,69岁,4个月前患者双下胶水肿,血红蛋白150g/L,尿常规蛋白阳性,24
黄疸病人合并肿大而无触痛的胆囊时,最可能是A.急性胆囊炎 B.慢性胆囊炎、
最新回复
(
0
)