Earth

How old do scientists think the Earth is?

More Questions from Earth
What imaginary line divides the Earth's northern and southern hemispheres?
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A weather proverb says "A year of snow," followed by what?
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What percentage of the earth's water is drinkable?
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What is the nickname of Katmai in Alaska?
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What is amber?
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What is a sudden collapse and downward motion of ice and rocks down a mountainside?
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What "foggiest" world capital averages 47 fogs a year?
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Thunderstorms form on what "lines"?
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