Deareditor,Environmentalproblemsarebecomingmoreandmoreseriousallovertheworld.Becauseofpopulationexpansionandoverdevelopment,resourceshavebecomelessandless.Treesonthehillshavebeencutdown,andwastewaterisbeingpouredcontinouslyintorivers.Thewholeecologicalbalanceoftheearthischanging.Massivedestructionofenvironmenthasbroughtnegativeeffectsandevenposesagreattheattoman’sexistence.Wemustfacethesituationthatexistsandtakeactiontosolveourenvironmentalproblem.Wehopethatallthesemeasureswillbeeffectiveandbringbackahealthyenvironment.Yourstruly,Lihua
