首页
登录
职称英语
All thermal radiation from a planetary surface absorbed by atmospheric greenhous
All thermal radiation from a planetary surface absorbed by atmospheric greenhous
游客
2025-01-25
17
管理
问题
All thermal radiation from a planetary surface absorbed by atmospheric greenhouse gases is re-radiated directly back toward the planet. [br]
The greenhouse effect is a process by which thermal radiation from a planetary surface is absorbed by atmospheric greenhouse gases, and is re-radiated in all directions. Since part of this re-radiation is back towards the surface and the lower atmosphere, it results in an elevation of the average surface temperature above what it would be in the absence of the gases.
Solar radiation at the frequencies of visible light largely passes through the atmosphere to warm the planetary surface, which then emits this energy at the lower frequencies of infrared thermal radiation. Infrared radiation is absorbed by greenhouse gases, which in turn re-radiate much of the energy to the surface and lower atmosphere. The mechanism is named after the effect of solar radiation passing through glass and warming a greenhouse, but the way it retains heat is fundamentally different as a greenhouse works by reducing airflow, isolating the warm air inside the structure so that heat is not lost by convection.
If an ideal thermally conductive blackbody were the same distance from the Sun as the Earth is, it would have a temperature of about 5. 3 degrees Celsius. However, since the Earth reflects about 30% of the incoming sunlight, this idealized planet’s effective temperature (the temperature of a blackbody that would emit the same amount of radiation)would be about — 18 degrees Celsius. The surface temperature of this hypothetical planet is 33 degrees Celsius below Earth’s actual surface temperature of approximately 14 degrees Celsius. The mechanism that produces this difference between the actual surface temperature and the effective temperature is due to the atmosphere and is known as the greenhouse effect.
Earth’s natural greenhouse effect makes life as we know it possible. However, human activities, primarily the burning of fossil fuels and clearing of forests, have intensified the natural greenhouse effect, causing global warming.
1. All thermal radiation from a planetary surface absorbed by atmospheric greenhouse gases is reradiated directly back toward the planet.
2. Re-radiation results in an elevation of the average surface temperature above what it would be without the gases.
3. Scarcely can solar radiation at the frequencies of visible light passes through the atmosphere.
4. Greenhouse gases can re-radiate much of the energy of infrared radiation to the surface and lower atmosphere.
5. The mechanism and the way it retains heat is of the same with that of the greenhouse.
6. If an ideal thermally conductive blackbody were the same distance from the Sun as the Earth is, it would have a temperature of about 15. 3 degrees Celsius.
7. About 30% of the incoming sunlight can be reflected by the Earth.
8. The greenhouse effect and some other factors produce the difference between the actual surface temperature and the effective temperature.
9. Earth’s natural greenhouse effect makes life impossible.
10. The burning of fossil fuels and clearing of forests have intensified the natural greenhouse effect.
选项
A、正确
B、错误
答案
B
解析
根据原文“Solar radiation at the frequencies of visible light largely passes through the atmosphere…”可以推断本陈述错误。
转载请注明原文地址:https://tihaiku.com/zcyy/3928842.html
相关试题推荐
ThedenseBelgianfogsiscausedbythecoolingofhumidsurfaceairtoarelati
Thehard,outsurfaceofthetoothiscalledenamel.A、outsideB、appearanceC、out
Absorbedinherwork,shewastotally______hersurroundings.A、liableforB、separ
Thehard,outsurfaceofthetoothiscalledenamel.A、outsideB、appearanceC、out
Wemustbecommitted______thedeepgreenhousegasreductionssinceweneedtoav
This______radiationwouldunavoidablyhavefreedoxygenbydecomposingthewater
Underthiscity’stranquilsurfaceliesafriendlybutradicalcoreofprogressi
This______radiationwouldunavoidablyhavefreedoxygenbydecomposingthewater
Wemustbecommitted_____thedeepgreenhousegasreductionssinceweneedtoa
Mostearthquakesoccurwithintheupper15milesoftheearth’ssurface.But
随机试题
Whendidtheblastshitthehotels?[originaltext]ISTANBUL,Turkey—Near-si
[originaltext]M:Thisisit.Iknowthatitissmallerthanyouwanted,butit
WhowrotetheDeclarationofIndependenc
下列居住区道路的设置要求中,何者是错误的?Ⅰ.居住区内主要道路至少应有两个方向与
对于络合滴定,下面关于酸效应系数正确的是()。A. B. C. D.
青春期前子宫停止发育;青春后期宫颈比宫体长;宫体小,前后径
一整批中有若干箱,分别从每箱中任意抽取2件的方式为()。A.简单随机抽样
有关绞窄性疝,下列哪项是错误的A.疝囊内渗液转为血水性 B.被卡住的肠管呈深红
白豆蔻与肉豆蔻都具有的功效是A、温中行气 B、涩肠止泻 C、理气安胎 D、
(),教育部颁布了新的《中小学班主任工作规定》。A.2003年7月8日
最新回复
(
0
)