Nature

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Across
  1. 4. a low area of land between mountains or hills, usually with a river flowing through it
  2. 5. the nut of an oak tree
  3. 7. a tall tree with an outer layer that comes off in thin strips like paper
  4. 10. an area of land covered by water where trees and plants grow
  5. 12. a large area of land covered by trees and other plants growing close together
Down
  1. 1. the beginning of the day, when it begins to get light
  2. 2. a line of bushes or small trees growing close together around a garden or field
  3. 3. a large piece of stone that rises up from the ground or from under the sea
  4. 6. a small animal with long ears and soft fur that some people keep as a pet
  5. 8. a net that a spider makes out of thin sticky strings
  6. 9. a structure that birds make to keep their eggs and babies in
  7. 11. a small pool of water, especially on a road after rain