Earth
What evidence tells scientists that some dinosaurs may have lived together in groups?
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Which of these is a soil that is better to grow plants in?
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Galileo was a 17th century astronomer famous for discovering that the Earth did what?
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What was the nationality of the scientist who demonstrated a heliocentric system?
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The "Bergeron process" deals with what kind of precipitation?
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Who published the groundbreaking book "Principles of Geology" in 1830?
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What layer in the atmosphere is responsible for filtering out solar radiation?
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