wild fire puzzle!

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Across
  1. 3. large span of trees
  2. 4. wild land
  3. 8. they were there first
  4. 9. big areas of flat grass
  5. 10. a geographic part of land
Down
  1. 1. a range of mountains
  2. 2. really big rocks
  3. 5. hot flames
  4. 6. wildlife
  5. 7. tiny blades of green plants