NATURE

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Across
  1. 3. A natural high piece of land rising more or less quickly to a high point.
  2. 4. A moving ridge or swell on the surface of water.
Down
  1. 1. The general weather conditions of a region, averaged over a series of years.
  2. 2. A natural stream of water flowing in a definite course.
  3. 4. A very large mammal that lives in the sea, having a fishlike body.