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My Answered Questions
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what happens if the black hole disapeared
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what are stars made off
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how does electricity work?
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why is the moon sometimes out during daylight?
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who was the first ever man to find or discover or make electricity?
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how do planes stay up in the air?
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Why is there no oxygen in space?
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how many satelites are there in space?
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how do we get more energy from the sun?
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what was your hardest inventions to build?