Unit 6 vocabulary

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Across
  1. 1. It is the edge of a mountain.
  2. 6. They are small rivers that join a bigger river.
  3. 7. A large area.
  4. 8. Take part in something.
Down
  1. 2. One of several things that causes a result.
  2. 3. They are parks that are owned by the government.
  3. 4. An area filled with trees.
  4. 5. They are enormous trees.