Earth

John Glenn first orbited the earth in what year?

More Questions from Earth
What is the name given to a fossil that best defines a rock layer's age?
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What plant's gel is often used in lotions and sunblocks?
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When is Earth day every year?
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In weather terms, what is the opposite of heat?
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What is the largest natural carbon sink on earth?
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Which star is the closest one to Earth?
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A line of equal or constant air temperature is what?
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What activity allows humans to go underwater with oxygen tanks and a wetsuit?
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