Everyday Science
X-ray was invented by:
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Radioactivity discovered _________
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Chlorofluorocarbons (CFC) are used in which of the following products:
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Chemical name of bauxite?
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What are the celestial bodies Ceres, Pallas, Juno and Vesta?
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Which of the following air carries no moisture?
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Energy currency _________
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The lens in the human eye is:
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Sound travels about ___________times faster in water than in air.
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