Earth

John Glenn first orbited the earth in what year?

More Questions from Earth
What is moving air called?
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What substance can layers of decayed plants form over time?
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What kind of gas is central in terms of the effect global warming?
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In weather terms, what does the Fujita scale classify?
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What "foggiest" world capital averages 47 fogs a year?
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How much of an iceberg appears above the water line?
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What is petroleum as found in the earth, before it is refined?
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What cloud has a flat, sheetlike appearance?
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