Water___into vapor by the sun falls as rain. It runs___the mountains and is converted to electric power. Light transmits only the energy___comes from the sun’s outer layers,and___of this energy that is directed toward the earth never arrives. About___of it is absorbed by the atmo...
Hot spots. anchored in the deeper layers of the earth, provide the measuring instruments needed to resolve the question. From an analysis of the hot-spot population it appears that the African plate is stationary and that it has not moved during the past 30 million years. The significance of...
Water turned into vapor by the sun falls as rain. It courses down the mountains and is converted to electric power. Light transmits only the energy that comes from the sun’s outer layers, and much of this energy that is directed toward the earth never arrives. About nine-tenths of it ...
Water turned into vapor by the sun falls as rain. It courses down the mountains and is converted to electric power. Light transmits only the energy that comes from the sun’ s outer layers, and much of this energy that is directed toward the earth never arrives. About nine-tenths of it...
Lighttransmitsonlytheenergythatcomesfromthesun’souterlayers,andmuchofthisenergythatisdirectedtowardtheearthneverarrives.Aboutnine-tenthsofitisabsorbedbytheatmosphereoftheearth.Infact,theearthitselfgetsonlyonehalf-billionofthesun’sentireoutputofradiantenergy.Radiantenergyisstoredascarboncompoundsby___. A. plants...
Light transmits only the energy___comes from the sun’s outer layers,and___of this energy that is directed toward the earth never arrives. About___of it is absorbed by the atmosphere of the earth. In___,the earth itself gets only one half-billionth of the sun’s entire output of r...
【小题1】What are the gases of the sun like? A. Very hot B. Very bright C. All of the above 【小题2】The sun’s energy comes from . D. X—rays E. nuclear fusion F. layers of gases 【小题3】The diameter of the earth is about 6300 km. How about that of the sun? G....
Light sends only the energy that comes from the sun’s outer layers, and much of this energy that is directed toward the earth never arrives. About nine-tenths of it is absorbed by the atmosphere of the earth. In fact, the earth itself gets only half -- billionth of the sun’s ...
absorbed by the earth's atmosphereD.used for electric power(5)Of the sun's entire output of radiant energy, the earth receives ___.[ ]A.nearly allB.about halfC.a very small partD.all that comes from the sun's outer layers 相关知识...
only the energy that comes from the s un's outer layers, and much of this energy never arri ves on earth About nine-tenths of it is absorbed by t he atmosphere of the earth In fact, the earth itself gets only one half-billionth of the sun's entire output of radiant (辐射)energy....