首页
登录
职称英语
All the useful energy at the surface of the earth comes from the activity of
All the useful energy at the surface of the earth comes from the activity of
游客
2024-01-16
39
管理
问题
All the useful energy at the surface of the earth comes from the activity of the sun. The sun heats and feeds creatures and mankind. Each year it provides men with two hundred million tons of grain and nearly ten million tons of wood, coal, oil, natural gas, and all other fuels are stored energy from the sun. Some was collected by this season’s plants as carbon compounds. Some was stored by plants and trees ages ago. Even waterpower derives from the sun. Water turned into vapor by the sun fails 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 layer, and much of this energy that is directed towards the earth never arrives. About nine tenths of it is absorbed by the atmosphere of the earth. In fact, the earth itself gets only one half millionth of the sun’s entire output of radiant energy. [br] The largest part of the light energy directed towards the earth is ______
选项
A、stored up by the plants
B、absorbed by the earth’s atmosphere
C、stored up by the animals in the form of body fat
D、used for electric power
答案
B
解析
事实细节题。文中倒数第二句提到约有十分之九的太阳光被地球的大气层吸收了,真正到达的很少。
转载请注明原文地址:https://tihaiku.com/zcyy/3367231.html
相关试题推荐
Treesareusefultomaninthreeimportantways:theyprovidehimwithwood
Treesareusefultomaninthreeimportantways:theyprovidehimwithwood
Treesareusefultomaninthreeimportantways:theyprovidehimwithwood
Treesareusefultomaninthreeimportantways:theyprovidehimwithwood
Withoutthesun’slight______theearth’ssurface,nolifecouldexistontheear
TheolderIget,themoreIvaluefriends,yetthe______timeandenergyIhave
Treesareusefultomaninthreeimportantways:theyprovidehimwithwood
Vitaminsdonotprovideenergy,nordotheyconstructorbuildanypartoftheb
Howcanwegetridofgarbage?Dowehaveenoughenergysourcestomeetour
Howcanwegetridofgarbage?Dowehaveenoughenergysourcestomeetour
随机试题
TheComplexitiesofReadingThislectureisthefirs
A—NewYear’sDayB—Valentine’sDayC—LanternFestivalD—CarnivalE—Apr
高中信息技术《信息安全问题》主要教学过程及板书设计 教学过程 (一)导入 播放《碟中谍》的片段,并提出问题——片段中的伊森的伙伴在做什么?这样对不对?有什
败毒散中配伍少量人参的主要用意是()A.大补肺脾,以复正气 B.补脾益肺
A.对疑似精神病患者应进行详细的检查,防止误诊误治 B.精神病患者的病情不宜公
221、对长期微渗的互感器应重点开展()的检测,必要时可缩短检测时间,以掌握
遇有电气设备着火时,应立即将有关设备的(),然后进行救火。 A.保护停
一直流发电机端电压U1=230V,线路上的电流I=50A,输电线路每根导线的电阻
下列关于动脉粥样硬化叙述正确的是( )。A.主要累及小动脉 B.基本病变是动
人民法院使用普通程序审理的案件,应当在立案之日起()个月内审结完成。A.3 B
最新回复
(
0
)