首页
登录
职称英语
Why do the changes in climate occur? [originaltext] Today I want to talk abou
Why do the changes in climate occur? [originaltext] Today I want to talk abou
游客
2024-10-11
0
管理
问题
Why do the changes in climate occur?
Today I want to talk about the Earth’s last major climatic shift, at the end of the last ice age. But first, let’s back up a moment and review what we know about climatic change in general. We defined "climate" as consistent patterns of weather over significant periods of time.
In general, changes in climate occur when the energy balance of the Earth is disturbed. Solar energy enters the Earth’s atmosphere as light and is radiated by the Earth’s surface as heat. Land, water, and ice each affect this energy exchange differently. The system is so complex that, to date, our best computer models are only crude approximations and are not sophisticated enough toTEST hypotheses about the causes of climatic change. Of course, that doesn’t keep us from speculating. For instance, volcanic activity is one mechanism that might affect climatic change. (12) When large volcanoes erupt, they disperse tons of particles into the upper atmosphere, where the particles then reflect light. Since less light is entering the system of energy exchange, the result would be a cooling of the Earth’s surface.
Of course, this is just one possible mechanism of global climate change. In all probability, (13) a complete explanation would involve several different mechanisms operating at the same time.
选项
A、Because the energy system is complicated.
B、Because land, water, and ice each affect the energy exchange differently.
C、Because the energy balance of the Earth is disturbed.
D、Because solar energy is radiated by the Earth’s surface as heat.
答案
C
解析
细节题。原文的开头部分提到气候变化是地球能量平衡遭到干扰或破坏造成的结果,因此正确答案为C。
转载请注明原文地址:https://tihaiku.com/zcyy/3796207.html
相关试题推荐
Whatdoesthepassagemainlydiscuss?[br][originaltext]Canalsarewaterc
Whatdoesthepassagemainlydiscuss?[originaltext]Canalsarewatercourses
Whatisthecurrenttimeintheconversation?[br][originaltext]Passenger:Hey
Whatisthecurrenttimeintheconversation?[originaltext]Passenger:HeyTaxi!
WhatdoesMrs.Danielsteach?[br][originaltext]Mrs.Daniels:Oh,hello,youm
Whereisthemancallingto?[originaltext]W:Goodmorning,canIhelpyon?M:Y
WherewillEXPO2004beheld?[br][originaltext]Anannualinternationalf
Whatcanweknowabouttheelephantsinzoos?[br][originaltext]Theeight
Whatcanweknowabouttheelephantsinzoos?[originaltext]Theeighteleph
Whatarethethreatstobiodiversityandecosystem?[br][originaltext]Scie
随机试题
AlthoughbusestendtobeslowerthanthesubwayfortravelingaroundNewYor
FairfaxPrincipalsWantIndoorSchoolCamerasOnedayinMar
Completethenotesbelow.WriteNOMORETHANTHREEWORDSAND/ORANUMBERforeac
[audioFiles]audio_ehbm_j05002(20082)[/audioFiles]A、Leavetheerrorsinthepape
《中国银监会办公厅关于严禁银行业金融机构及其从业人员参与民间融资活动的通知》银监
打击报复信访人,尚不构成犯罪的,依法()。A.给予行政处分 B.追究刑事
采用搅拌桩加固软土形成复合地基时,搅拌桩单桩承载力与以下哪个选项无关?( )A
与剂量和药理作用无关的不良反应是A.后遗效应 B.特异质反应 C.变态反应
投资项目决策分析与评价的基本要求包括贯彻落实科学发展观、资料数据准确可靠和()
最新回复
(
0
)