Earth

How cold does it need to be outside before it can snow?

More Questions from Earth
Which of these is also known as "squawroot"?
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Which type of irrigation is most commonly used throughout the world?
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What is the world's highest mountain?
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Which volcano in Iceland was once thought to be a gateway to the underworld?
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Where is an earthquake's epicenter?
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What is the hardest mineral known on Earth called?
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Fluids with a high viscosity resist what?
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Which material do fossils make more attractive to an architect?
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