Earth
From which does the Global Positioning System receive its information?
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How cold does it need to be outside before it can snow?
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What are large bodies of air with similar temperatures and moisture content called?
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What is a sudden collapse and downward motion of ice and rocks down a mountainside?
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Weather radar that measures direction and speed of a moving object best fits which science term?
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What happens to the pressure of water as depth under the water increases?
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From where does 90% of the water vapor in the air come?
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Which of the following items is a tool used to tell time by the sun's movement in the sky?
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In what direction does the sun set for people on Earth?
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What is the estimate of the true age of a mineral or rock called?
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What famous volcano erupted in 1980 after many years of dormancy?
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What are mounds of sand that have been windblown called?
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What is the repeating cycle of precipitation, condensation and evaporation called?
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