How can a yard sale help not pollute the earth?
When you buy something in a garage sale youa re reusing. This is one way the it doesn't pollute the earth. ...
Asked in Pollution, Hydro Power
Does hydroelectric energy pollute the earth?
No, Hydroelectricity doesn't pollutes the earth because water is a renewable source of energy and will never run out so Hydroelectricity doesn't pollute the earth, but when dams or Hydroelectricity things that keep water out break down it will cause some smoke and will pollute the earth a tiny bit ...