April22isEarthDay.Everyoneonearthshouldcareaboutandprot...
问题详情：April22isEarthDay.Everyoneonearthshouldcareaboutandprotecttheearth!Theearthhaswarmedbyabout1°F(华氏度)overthepast100years,butwhyandhow?Well,scientistsarenotquitesure.Maybetheearthgetswarmeran...