Background Paragraph: One result of air pollution is acid rain. Acid rain is precipitation with a low (acidic) pH. This rain can be very destructive to wildlife. When acid rain falls in forests, freshwater habitats, or soils, it can kill insects and aquatic life. It causes this damage because of its very low pH. Sulfur oxides and nitrogen oxides in the air both cause acid rain to form ( Figure below ). Sulfur oxides are chemicals that are released from coal-fired power plants. Nitrogen oxides are released from motor vehicle exhaust. 
Story: Two counties paid a study about acid rain. They  found out Hill county had experienced that, while New county hadn't.
Which county experienced less air pollution? Which county experienced less precipitation destructive to forests? Which county experienced less precipitation destructive to freshwater habitats? Which county experienced less precipitation destructive to wildlife? Which county experienced less precipitation with a low (acidic) pH? Which county experienced more air pollution? Which county experienced more precipitation destructive to forests? Which county experienced more precipitation destructive to freshwater habitats? Which county experienced more precipitation destructive to wildlife? Which county experienced more precipitation with a low (acidic) pH?