Human Impact on Land and Water Resources

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Across
  1. 3. a large body of water surrounded by land.
  2. 4. a large natural stream of water flowing in a channel to the sea or a lake,
  3. 7. a large natural stream of water flowing in a channel to the sea, a lake
  4. 8. a large area covered chiefly with trees and undergrowth.
Down
  1. 1. the introduction of harmful materials into the environment
  2. 2. the action of clearing a wide area of trees.
  3. 5. water held underground in the soil or in crevices in rock.
  4. 6. long-term shifts in temperatures and weather patterns