首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
What is the major source of evaporation of water from the oceans and lakes?
What is the major source of evaporation of water from the oceans and lakes?
admin
2010-08-07
68
问题
What is the major source of evaporation of water from the oceans and lakes?
We experience different forms of the Sun’s energy every day. We can see its light and feel its warmth. The Sun is the major source of evaporation of water from the oceans and lakes. Sunlight also provides the energy used by green plants to make their own food. These green plants then provide food for all organisms on the Earth.
Much of the energy that comes from the Sun never reaches the Earth’s surface. It is either reflected or absorbed by the gases in the upper atmosphere. Of the energy that reaches the lower atmosphere, 30% is reflected by clouds or the Earth’s surface. The remaining 70% warms the surface of the planet, causes water to evaporate, and provides energy for the water cycle and weather. Only a tiny part, approximately 0.023%, is actually used by green plants to produce food.
Many gases found in the atmosphere actually reflect heat energy escaping from the Earth’s surface back to the Earth. These gases act like the glass of a greenhouse in that they allow energy from the Sun to enter but prevent energy from leaving. They are therefore called greenhouse gases.
When sunlight strikes an object, some of the energy is absorbed and some is reflected. The amount reflected depends on the surface. For example, you’ve probably noticed how bright snow is when sunlight falls on it. Snow reflects most of the energy from the Sun, so it contributes to the low temperatures of winter. Dark-colored surfaces, such as dark soil or forest, absorb more energy and help warm the surrounding air.
选项
A、The moon.
B、The sun.
C、The star.
D、The earth.
答案
B
解析
细节题。根据“The sun is the majar source of evaporation of water from the oceans and lakes”,可知正确答案为B。
转载请注明原文地址:https://kaotiyun.com/show/TExd777K
本试题收录于:
公共英语四级笔试题库公共英语(PETS)分类
0
公共英语四级笔试
公共英语(PETS)
相关试题推荐
Howlongwillonecoursetake?
【61】【65】
AnAmericansenatorcriticizedTimeWarnerforTheword"flap"(Para.3)heremeans
Thepassageischieflyabout______.Thedeep-sealisteningsystemmakesuseof______.
Educationisprimarilytheresponsibilityofthestates.Stateconstitutionssetupcertainstandardsandrulesfortheestablis
TheWTO’stransparentandnon-discriminatoryrulesrequireallmembercountriesto______.Theauthorofthepassageseemstob
WhatusedtobetheonlywaysomepeopletraveledinBangkok?
【B1】Thelegalquestionaboutwhetherandtowhatextentitisappropriatetoauditandmonitorcompanycomputersystemsisnoty
Somecitiesgrowverylargebecauseoftwoimportantreasons.First,theremaybeimportantnaturalresourceslikewood,gas,oi
Academy本题是细节题,此内容多次重复,比较容易把握,难度在于单词的拼写和首字母大写上。
随机试题
Haveyouseenthelion______underthatbigtree.
新时期,我国统一战线的基础是
MPV增加见于
A.用药后引起机体损害性反应B.在常用剂量时出现与治疗无关的不适反应C.二者均是D.二者均不是中药的副作用是指()
假膜性炎腹水
钢的碳含量为()。
请根据表格格式,设计出“单手侧向推实心球”新授课的技能教学目标和主要教学步骤。下面是某高中阶段(水平五)田径教学内容“单手侧向推实心球”示意图(见图1)
撤军
PassageThreeOnwhichsidedoesApple’smodelexertmoreconstraints?
Asfoodistothebody,soislearningtothemind.Ourbodiesgrowandmusclesdevelopwiththe【C1】______ofadequatenutritious
最新回复
(
0
)