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the channeled scablands group of answer choices are an area of unusual topography in alaska. are the result of a slow-onset flood. were flooded because successive glacial dams of glacial lake missoula broke. were created by great floods about 110,000 years ago.

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The Channeled Scablands, located in the southeast corner of Washington, are a relatively arid and soil-free area of interconnected relict and dry flood channels,

More than 40 cataclysmic floods occurred during the Last Glacial Maximum, and there have been countless older cataclysmic floods over the past two million years. During the Pleistocene era, these floods were periodically released whenever a large glacial lake ruptured its ice dam and swept across eastern Washington and down the Columbia River Plateau. Cataclysmic floods were last experienced between 18,200 and 14,000 years ago ., geologist J Harlen Bretz defined "scablands" as lowlands with a variety of irregular channels and rock basins that have been eroded into scablands

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