1.do/makeasurveyonstudents’dailyhabits2.thenumberofthestudentsanumberofstudents3.turnoffthetapwhenbrushingteeth4.takeshowersforlessthantenminutes5.usebothsidesofthepaper6.recycleemptybottles7.takeone’sownbagstothesupermarket8.turnoffthelightswhenleavingaroom9.doalottohelpprotecttheenvironment10.becomeaseriousproblemallaroundtheworld11.plantmoretrees12.looknicerwithmoretreesaround13.reducedust14.helpkeeptheairclean15.helpkeepsoilinplaceduringstorms16.providehomeforanimals=provideanimalswithhome17.Airpollutionisharmfultoourhealth.=Airpollutiondoesharmtoourhealth.
