Science

What is the opposite to ordinary matter called?

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When we add two forces, what do we call the answer?
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Which sea is not found on the earth's moon?
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Which parts of a flower are often brightly-colored and have many different shapes?
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What is the potential energy in the nucleus of an atom called?
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What form of energy are we using when we use an alarm clock or a dishwasher?
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What is the unit of measure called clo for?
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