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What is the hardest known natural material?
Science
What is the hardest known natural material?
Carbon
Iron
Diamond
Mercury
More Questions from Science
What system of measurement is used in science?
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The definition of "a physical unit of storage on a computer disk or tape" best fits which science term?
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What does the word "constellation" mean?
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Which college features the Dooley Planetarium?
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What is the freezing point of water in the Kelvin Scale?
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What is the rhythmic repetition surrounding the planetary day called?
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Which star is the brightest star in the northern sky at night?
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In what year did Albert Einstein win the Nobel Prize for physics?
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