Natural features

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Across
  1. 2. Large body of saltwater that covers most of the Earth's surface.
  2. 5. Dense and lush forest with a great diversity of plant and animal species.
  3. 6. Landmass completely surrounded by water.
  4. 7. Extensive area covered with trees, plants, and wildlife.
Down
  1. 1. Low-lying area between mountains or hills, usually with a river or stream flowing through it.
  2. 3. Deep gorge or ravine formed by the erosion of water over time.
  3. 4. Large mass of slowly moving ice that forms in cold, mountainous regions.