Earth
What evidence tells scientists that some dinosaurs may have lived together in groups?
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What is sedimentary rock composed primarily of sand-sized grains?
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What is the term used to classify igneous rocks that are light in both color and gravity?
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Which body part is also a name for the center of a hurricane?
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How many geysers is Yellowstone National Park home to?
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What is the name for snow crystals that melt and refreeze into granular particles on glaciers?
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What is compressed moss that turns blackish brown called?
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What name is used specifically to describe the region around the South Pole?
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