Nature

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Across
  1. 2. Vast expanse of sea.
  2. 4. Lowland between hills.
  3. 6. Tall natural elevation.
  4. 7. Sandy shore.
  5. 9. Natural stream of water.
  6. 10. Seed-bearing plant part.
Down
  1. 1. Area covered with trees.
  2. 3. Mass of condensed water vapor.
  3. 5. Direct sunlight.
  4. 8. Woody plant.