1) A landform with steep sides and usually carved by a river. a) Island b) Cavern c) Mountain d) Canyon 2) A landform with low land between mountains or hills. a) River b) Valley c) Ocean d) Cavern 3) A mountain with a hole in the top so that lava can erupt. a) Glacier b) Desert c) Volcano d) Waterfall 4) Which of the following are not a landform. a) Plataeu b) Plain c) Football field d) Island 5) A landform that is surrounded by water on all sides. a) River b) Island c) Lake d) Waterfall 6) An underground cave. a) Cavern b) Island c) Mountain d) Valley

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