geography

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Across
  1. 3. a large natural elevation of the earth's surface rising abruptly from the surrounding level; a large steep hill.
  2. 4. a large underground chamber, typically of natural origin, in a hillside or cliff.
  3. 5. a large floating mass of ice detached from a glacier or ice sheet and carried out to sea.
  4. 6. a low area of land between hills or mountains, typically with a river or stream flowing through it
  5. 9. a piece of land surrounded by water.
  6. 10. a large body of water surrounded by land.
Down
  1. 1. a large area covered chiefly with trees
  2. 2. water falling from a height
  3. 7. a large natural stream of water flowing in a channel to the sea, a lake, or another such stream.
  4. 8. the expanse of salt water that covers most of the earth's surface and surrounds its land