Science

What do our bodies need from the air we breathe?

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How fast does light travel in one second?
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In what part of the human body is the heart found?
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The modern equivalent of Aristotle's polis is an independent unit called what?
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What is the main form of energy produced by a laser?
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Clouds are made up of what?
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Which planet's orbit is the most circular?
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What is another name for a volt-ohm meter?
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What is the freezing point of water in the Kelvin Scale?
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