Earth
What were water mills used for in the 1700's in Europe?
More Questions from Earth
What weather-related term comes from Greek words for "high in the sky" and "knowledge"?
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According to tradition, what insect in the town of Vermilion predicts the winter weather?
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What kind of gas is central in terms of the effect global warming?
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Approximately what fraction of the Earth's air is made up of oxygen?
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What rock was used for navigation by the ancient Chinese people?
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What word is generally used to describe visible air pollution?
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