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
2025-03-02
32
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] Radiant energy is stored as carbon compounds by( ).
选项
A、plants
B、water
C、rock
D、creatures
答案
A
解析
事实细节题。文中第四句提到,太阳能作为碳的化合物储存在植物体内,所以选A。
转载请注明原文地址:https://tihaiku.com/zcyy/3978710.html
相关试题推荐
Treesareusefultomaninthreeimportantways:theyprovidehimwithwood
Treesareusefultomaninthreeimportantways:theyprovidehimwithwood
Treesareusefultomaninthreeimportantways:theyprovidehimwithwood
Treesareusefultomaninthreeimportantways:theyprovidehimwithwood
Treesareusefultomaninthreeimportantways:theyprovidehimwithwood
Treesareusefultomaninthreeimportantways:theyprovidehimwithwood
______fromthemoon,theearthwithwater______seventypercentofitssurface.A、
Howcanwegetridofgarbage(垃圾)?Dowehaveenoughenergysourcestomeeto
Howcanwegetridofgarbage(垃圾)?Dowehaveenoughenergysourcestomeeto
Theshortageofenergyisgettingworse.It______animmediatesolution.A、callso
随机试题
Thewinnercantake______heprefersinanyMontBlancstore.A、nomatterwhatB
[originaltext]M:Goodmorning.RobertCreightonspeaking.W:Goodmorning.Myn
Westerndoctorsarebeginningtounderstandwhattraditionalhealershaveal
谈判的客体大致包括几()个方面。A.谈判的地点 B.针对什么问题谈判 C.
商业汇票的收款人或持票人向付款人提示付款时,应在汇票背面记载()字样。A.“承
普通硅酸盐水泥强度等级分为()。A.27.5、27.5R B.32.5、32.
易化扩散的特点是A.不需ATP,逆浓度差,特异性不高,有竞争抑制B.需ATP,顺
等电位作业人员对邻相导线的距离应不小于:(____)m。(A)66kV;0.9m
根据《标准设计施工总承包招标文件》,承包人文件中最主要的文件是( )。A.设计
近代会计按服务对象不同.主要分为财务会计和管理会计。( )
最新回复
(
0
)