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
60
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
IsHappinesstheSecretofSuccess?I.Theresearchabout
Springisa【B1】________season.Thetemperaturesaremild,andtheblooming
AftersomanyyearsofstudyingEnglish,youmaystillgetconfusedlikeyou
Ifwomenaremercilesslyexploitedyearafteryear,theyhaveonlythemselve
[originaltext]In1955,WaltDisneyhimselfopenedthefirstDisneyParkin
寒冷地区和炎热地区住宅设计的差异主要表现在( )。A.寒冷地区要考虑节能,炎热
激光手术是以激光束代替金属的常规手术器械对组织进行A.切割 B.焊接 C.分
假定夫妻不和睦的男司机会有较高的事故发生率,如用病例对照研究来检验此假设,合适的
女性,33岁,妊娠3个月,怕热、多汗、食欲亢进、便溏,测总T、总T稍高。为确诊该
模仿法中()。A:示范者与模仿者共同之处越多越好 B:示范者与模仿者共同之处越
最新回复
(
0
)