Pollution:aSocialProblem
Whenwereadnewspapers,weoftencomeacrossthewordpollution.Thiswordwasnotfamiliartothepeoplesomedecadesago.Butnow,itisaseriousthreattousbecause.itmeansthepoisoningoftheair,seas,riversandlands,whichwoulddoharmtoourhealth.
Therearemanyfactoriesthatbringpollutiontous.Wecannothavefreshairinthemorning.Thisismainlybecauseofthepoisonoussmokecomingfromfactories,especiallychemicalones.Inrivers,seasandoceans,thereareindustrialwastes.Somefactoriesjustthrowtheirwastesintoseasorletthemflowintorivers.Whenpeopledrinkthewaterfromsuchrivers,theygetpoisoned.Besides,thereisrubbishfromshipsandwhensometimesanaccidentoccursinanocean,oilflowsoutfromtankers.
Onland,theaccumulationofrubbishinthestreetsmaydirtythecityandruinourhealth.Thisismainlyduetotheimproperdisposalofrubbishbypeople.
Ifwedomotfightagainstpollution,surelyonedayallofuswillbekilled.Somepeopleliketoputtheblameontheindustrialrevolutions.Onthecontrary,thepollutionproblemwillbesolvedonlywiththehelpofmodemscienceandtechnology.