Complete each sentence using the drop-down menus. Desertification mainly impacts resources. Point and nonpoint sources refer to types of pollution. The process of people moving to cities, called , greatly impacts land, air, and water resources. The burning of fossil fuels can cause .
air✔ waterland
deforestation ✔ urbanizationdesertification
✔ smog and acid rainsmog and runoff acid rain and runoff
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