2、rcesandatthesametimepollutingourenvironmentwithdangerouschemicals.Ifwecontinuetodothis,lifeonearthcannotsurvive. ConcernedpeoplehavemadesomeproGREssinenvironmentalprotection.Governmentsofmanycountrieshaveestablishedlawstoprotecttheair,forestsandsearesourcesandtostopenvironmentalpollution. Sti