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  1. Eastern Colorado Prairies

    Eastern Colorado Prairies

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  2. Black Hills near the Wyoming/Montana border

    Black Hills near the Wyoming/Montana border

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  3. Oklahoma's Gypsum Hills

    Oklahoma's Gypsum Hills

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  5. Scientists Discover Hundreds of Unique Species in Africa’s Newest Ecoregion

    Scientists Discover Hundreds of Unique Species in Africa’s Newest Ecoregion

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  9. Yellowstone park is the first national park in the world

    Yellowstone park is the first national park in the world

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  11. Definition of Atmosphere | Define atmosphere | #definition #shorts

    Definition of Atmosphere | Define atmosphere | #definition #shorts

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