Natural Resources

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Across
  1. 4. carbon dioxide
  2. 5. crust
  3. 7. oxygen
  4. 8. rocks
  5. 9. minerals
  6. 11. animals
  7. 13. water
  8. 16. natural resources
Down
  1. 1. underground
  2. 2. natural gas
  3. 3. protect
  4. 6. fossil fuels
  5. 10. soil
  6. 12. plant
  7. 14. air
  8. 15. sunlight