绿色家园,环保先锋
本文是关于高中作文的绿色家园,环保先锋,感谢您的阅读!
Weliveintheworldeveryday.WeeatfooddrinkwaterwearclotheswatchTVusecomputersandsoon.Weareproducingwasteeverymoment.
Generallyspeakingtherearefoursortsofwaste.Theyarematerialwasteorganicwasteinorganicwasteandpoisonous&harmfulwaste.Nowwearegoingtotalkabouteachsortofwasteonebyone.
Materialwaste:itmeansthewasteofsubstanceorthingsfromwhichsomethingelsecanbemade.Forexamplepeoplethrowawaytheusedmetalproductsandbuyanewonesotheoldmetalwasteaccumulates.Atlasttheybecomewaste.Forexamplewhenpeoplefinishreadingnewspaperthepaperwillbecomewaste.Whentheglassisbrokenitalsobecomeswaste.Nobodywantstouseabrokenwindowordrinkwithabrokenglassorwearapairofbrokenglasses.Onceitisbrokenitbecomeswaste.Therateofusingplasticsisincreasingdaybyday.Peopleuseplasticbagsbecausetheyareconvenient.Whentheygethometheythrowtheplasticswaypayingnoattentiontotheenvironment.Themoreconvenienceplasticsbringstousthemoreplasticwasteisproduced.Thisiscalled
“
whitepollution
”
asmostplasticsarewhite.Someofourproductsweuseeverydayaremadeofrubberjustlikethetyresandthebottompartofourshoes.It
’
struethatrubberplaysanimportantroleinourlife.Howeveritalsobringsussometroublewhenithasbeenusedforalongtimeandbecomesold.Theoldtyresbecomewastebecauseitcan’tbreakdownbynature.Thisisreallyabigproblem.
Organicwaste:itreferstowastefromlivingthingsincludingwastefromanimalsplantsandpeople.Somepartsofvegetablesarethrownawayaswastebecausetheydon
’
ttastegood.Inthepastpeoplecookedtheirfoodusingburningcoalsotherelefttheburnedcoalwhichisuselesslikethethrownvegetables.Allthissortsofwastecontainorganismsoitiscalledorganicwaste.
Actuallywealsohaveinorganicwastetheoppositetoorganicwasteincludingbuildingwastebrokenpotteryandchinaandcinder.
Thelastpartisharmfulandpoisonouswastesuchasusedbatterieselectricalapparatusandmedicalsupplies.ComputersandTVsetsareonepartofelectricalapparatus.Youseetheoldelectricalapparatuscansetoffsomedangerousraysandmakethesoilharderevendamagetheundergroundwater.MobilephonesareasdangerousascomputersandTVsets.AsweknowX-rayscanbeusedtoexaminepatientsbuttheX-raysmachinesaredangerouswhentheyarethrownawaywithoutanytreatment.Theycan
’
tbeusedtotreatthesickbuttheystillcangiveoffrays.Forthenormalpeoplethe
ycanbedangerous.Sowemustthinkaboutthisproblem.
Aswastehasfoursortswecansortthemintoeachsortthattheybelongto.It’sconvenienttotreatthemaftertheyaresorted.Thenwecandealwiththemsortbysort.Wehavethoughtoutsomemethodslikestoringtheminordertochangethemintoplantfoodorburningtheminahugestoveandusetheheattomakeelectricity.Forthefirstwaythechangerateismuchtoolowanditmaypollutetheundergroundwater.Forthesecondoneofcourseit
’
swonderfulifit
’
seasytobetriedout.Buttobuildsuchahugestovewillcosttoomuch.Notagoodmethod.Nowyouseetreatingwasteisnotaneasyjob.