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
64
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] Of the sun’s total output of radiant energy, the earth receives
选项
A、one tenth
B、one millionth
C、all that comes from the surface of the sun
D、a very small portion
答案
D
解析
事实细节题。文中最后一句说,事实上,地球只接收了太阳所有辐射能量的百万分之零点五,所以是相当小的一个比例。
转载请注明原文地址:https://tihaiku.com/zcyy/3367232.html
相关试题推荐
Alltheusefulenergyatthesurfaceoftheearthcomesfromtheactivityof
Howcanwegetridofgarbage?Dowehaveenoughenergysourcestomeetour
Howcanwegetridofgarbage?Dowehaveenoughenergysourcestomeetour
Howcanwegetridofgarbage?Dowehaveenoughenergysourcestomeetour
Treesareusefultomaninthreeimportantways:theyprovidehimwithwood
Treesareusefultomaninthreeimportantways:theyprovidehimwithwood
Treesareusefultomaninthreeimportantways:theyprovidehimwithwood
Treesareusefultomaninthreeimportantways:theyprovidehimwithwood
Treesareusefultomaninthreeimportantways:theyprovidehimwithwood
Treesareusefultomaninthreeimportantways:theyprovidehimwithwood
随机试题
Providingforapaymentmechanismorthetransferoffundsisoneoftheimp
Toitsfans,itisaddictive.Tothemedia,itisapromisingmoney-maker.S
[originaltext]Theworld’sfirstgunmadewith3Dprintertechnologyhasbee
Thereisundeniablyagreatdealofadvertisingcurrentlywhichisaimedat
ChoosingEnglishProgramsintheUSA1.Whatisyourgoal?■Fora【T1】______:2
Theperiodofadolescence,i.e.,theperiodbetweenchildhoodandadulthood,
根据资料,下列判断正确的是:A.2013—2018年,H市生产总值年平均增长
企业组织结构的设计包括( )和工作岗位设计等多项内容。A.组织环境分析 B.
关于引发心理问题的关键点的描述,正确的是,该因素()。多选A.在个体发展中持久
肝硬化的重要实验室诊断依据是A.蛋白下降及A/G比值倒置 B.血糖减少 C.
最新回复
(
0
)