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
23
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/3314282.html
相关试题推荐
Allthermalradiationfromaplanetarysurfaceabsorbedbyatmosphericgreenhous
Allthermalradiationfromaplanetarysurfaceabsorbedbyatmosphericgreenhous
Allthermalradiationfromaplanetarysurfaceabsorbedbyatmosphericgreenhous
Allthermalradiationfromaplanetarysurfaceabsorbedbyatmosphericgreenhous
HowmanysquarekilometersdoesIBM’sGlobalHigh-ResolutionAtmosphericForecas
Scientistsbelievea2.7percentdropingreenhousegasemissionseachyearfor
Thecountriesthatarebeingblamedfortheextragreenhousegasesintheatmosp
Thelessthesurfaceofthegroundyieldstotheweightofthebodyofarunner,
Johnsonwassoabsorbedinhisnovelthatheforgotabouthisdinnercookingin
Johnsonwassoabsorbedinhisnovelthatheforgotabouthisdinnercookingin
随机试题
[originaltext]Manycollegestudentshavegivenuptakingclassnotesbyhand.
Arapidmeansoflong-distancetransportationbecameanecessityfortheUni
Whichofthefollowingisthebesttopicaboutthisarticle?[br]Accordingtot
圆轴扭转强度条件要求,截面边缘处的最大剪应力()许用切应力。A.相当于 B.
数字签名的主要功能不包括( )。A.保证信息传输的完整性 B.防止交易中的抵
承建方项目经理向监理方提交正式审核所用的项目管理计划。其中必须包括()。A
A.卵母细胞质内单精子注射 B.体外受精与胚胎移植 C.胚胎植入前遗传学诊断
输液引起肺栓塞的特征性症状是A.高热 B.呼吸困难和严重发绀 C.四肢麻木
在专家分析法中,对企业信用分析的5Cs系统使用最为广泛。()
下列不属于常见边坡破坏的类型是()。A.松弛张裂 B.蠕动变形 C.崩
最新回复
(
0
)