canyon, A deep valley with very steep sides, often carved from the Earth by a river, hill, A raised area or mound of land, island, A piece of land that is surrounded by water, river, A large, flowing body of water that usually empties into an ocean, lake, A large body of water surrounded by land on all sides, plain, Flat land that has only small changes in elevation, mountain, A very tall and high, natural place on Earth, ocean, A large body of salt water that surrounds a continent

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