theproblemofpollution,cause,artificialsubstances,release,wasteproducts,industrialproduction,consumptionofgoods,bringitundercontrol,agriculture,chemicalsubstancea.

　　EnvironmentalPollution

　　Ireadapieceofnewsrecently.ItsaysthatinJapanmarlybusinessmenavesellingfreshairtocustomers.andnowitisbecomingmoreandmorepopular.Why?--FreshairisgettinglessandlessinJapan,andsoisitintheU.S.A.

　　Infact,environmentalpollutionisaveryseriousproblemthewholeworldisfacing.

　　itismainlycausedbythewasteproductsreleasedfromartificialsubstances,industrial

　　productionandincreasedconsumptionofgoods.Bedsides,theuseofchemicalsubstances

　　inagriculturealsocausesenvironmentalpollution.Lookatthesky,youcanseethatdensesmokeisbeingreleasedfromthehighandbigchimneys;thosedirtyandpoisonoussubstancesareflowingintotheriversthatweusefordrinkingwaterandmillionsoftonsofwasteproductsareheapingaroundus.

　　Howtochangethiscondition?Moreandmorecountriesaretryingtoworkoutsomeeffectivemeanstobringitundercontrol,butnogreatsuccesshasbeenmade.