Science

What is matter that doesn't allow light to pass through called?

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What is the part of a plant that serves primarily as the plant's food-making organ?
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Who was known for his famous "oil-drop" experiments to determine the charge of the electron?
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To which part of physics does the Archimedes' Principle refer?
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What famous scientist introduced the concept of "space-time"?
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What is the largest planet in the solar system?
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At which angle should a cannon be aimed to maximize distance?
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What is Jupiter mostly made of?
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