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The Cascade Range or Cascades is a major mountain range of western North America, extending from southern British Columbia through Washington and Oregon to Northern California. It includes both non-volcanic mountains, such as the North Cascades, and the notable volcanoes known as the High Cascades.
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The definition of a diminution is a reduction in size or a reduction in the importance of someone or something. The new emission standards have produced a measurable diminution in air pollution.
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