water

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Across
  1. 1. to change from a gas to a liquid
  2. 4. the gas form of water
  3. 5. to wear away
  4. 7. a flowing stream with water within a larger body of water
Down
  1. 2. a material found in nature that is useful to humans
  2. 3. harmful matter that makes soil,water and air dirty
  3. 5. to change from a liquid to gas
  4. 6. an imaginary line around the earth halfway between north and south poles