advanced wildlife crossword puzzle

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Across
  1. 2. they have trees and other wildlife
  2. 4. used to grow plants
  3. 6. black rock
  4. 7. humans need this to live
  5. 8. people eat these and farmers grow them
Down
  1. 1. plants feed off this
  2. 2. typically live in bodies of water
  3. 3. on of the hardest minerals in the world
  4. 5. one of the most common metal
  5. 9. cars need this to run