Science
What is the opening of a lens, which controls the amount of light?
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What is the generic term for very small loose particles of hard, broken rock or minerals?
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What is the ripened ovary of a flower better known as?
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The obscuring from sight of one celestial body by another is also by what scientific term?
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What graced the left shoulder of an Apollo astronaut's training suit?
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What is the reproductive organ of most seed-bearing plants?
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What type of simple machine is used on a flag and flag pole?
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What is an angle that an airplane's wings make with a horizontal plane called?
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