nature

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Across
  1. 4. The ground we walk on; not the water or the sea.
  2. 5. Something hot and bright that cooks food and gives light.
  3. 6. Forest.
  4. 8. Nature.
  5. 10. A big, dark hole in a rock or under the ground.
Down
  1. 1. A rock; a hard piece of ground.
  2. 2. A small mountain that you can easily walk up.
  3. 3. A very small, thin river.
  4. 7. A very hot, dry place with a lot of sand and almost no water.
  5. 9. The big, blue sea.