Energy

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Across
  1. 5. a placewhere solar heat is transformed into energy
  2. 7. covered with soil and rocks
  3. 9. fossil fuel
Down
  1. 1. wood
  2. 2. a process of dirting the environment
  3. 3. able to be replaced
  4. 4. ancient prints of plants or animals in rock
  5. 6. material that produces heat when is burnt
  6. 8. a structure to prevent water from falling
  7. 9. cut