欢迎来到天天文库
浏览记录
ID:44405741
大小:1.26 MB
页数:12页
时间:2019-10-21
《大气污染的起因》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、Today,ourlivingenvironmentispollutedbyallkindsofpollution.Airpollution,Waterpollution,Whitepollution,Soundpollution,Lightpollutionandetc.AirpollutionWaterpolutionWhitepollutionSoundpollutionLightpollutionThecauseofairpollutionAccordingtothesurvey,thereareaboutmorethan600
2、milliontonsofpollutionsthatgetintoaireveryyear.Thesourceofairpollution:Livingsource:suchasthefireofcoalthatgiveofftheashesandwastegasesthatarefromfamily,economic-servicedepartmentandect.Thesourceofairpollution:Trafficsource:suchasthewastegascomesfromcars,train,plane,ship
3、andect.Industrysource:suchaspower-transportationfactory,steel-ironfactoryandotherchemicalfactorygiveoutharmfulgasesanddust.IndustrializationisthemaincauseToomanycarsFire
此文档下载收益归作者所有