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
2023-12-29
37
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
A
解析
根据原文“…above what it would be in the absence of the gases”可以推断本陈述正确,题干中without跟in the absence of属同义互换。
转载请注明原文地址:https://tihaiku.com/zcyy/3314281.html
相关试题推荐
______nofrictionbetweenthesurfaceoftheroadandourfeet,wecouldnotwal
ThedenseBelgianfogsiscausedbythecoolingofhumidsurfaceairtoarelati
Thehard,outsurfaceofthetoothiscalledenamel.A、outsideB、appearanceC、out
ThedenseBelgianfogsiscausedbythecoolingofhumidsurfaceairtoarelati
Wemustbecommitted______thedeepgreenhousegasreductionssinceweneedtoav
This______radiationwouldunavoidablyhavefreedoxygenbydecomposingthewater
Underthiscity’stranquilsurfaceliesafriendlybutradicalcoreofprogressi
This______radiationwouldunavoidablyhavefreedoxygenbydecomposingthewater
Mostearthquakesoccurwithintheupper15milesoftheearth’ssurface.But
Mostearthquakesoccurwithintheupper15milesoftheearth’ssurface.But
随机试题
PassageOne(1)Mrs.Sowerberryburstintoafloodoftears.Thisflo
[originaltext]W:Abunchofusaregettingtogetherforavolleyballmatchont
The24solarterms,asystemconsideredtobeChina’sfifthgreatinventio
关于放置宫内节育器的出血,哪项不正确A.多发生于放置IUD后1年内 B.IUD
银行业金融机构应当制定风险管理政策和程序,包括但不限于( )。A.压力测试安排
下列导致外科急腹症的病变中,起病最缓的是A.炎症性病变 B.穿孔性病变 C.
道路宽度超过40m时,可考虑在道路两侧各设一条( ),以减少连接支管的数目及与
教育心理学研究的核心内容是教学过程。()
(2021年真题)环境空气补充监测点选择,首先需要考虑的气象要素是()。A
根据《环境影响评价技术导则总纲》,下列关于工程分析基本要求的说法,正确的是(
最新回复
(
0
)