April22isEarthDay.Everyoneonearthshouldcareaboutandprot...
問題詳情：April22isEarthDay.Everyoneonearthshouldcareaboutandprotecttheearth!Theearthhaswarmedbyabout1°F(華氏度)overthepast100years,butwhyandhow?Well,scientistsarenotquitesure.Maybetheearthgetswarmeran...