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What is the definition of a fossil?
A. the remains or impression of a prehistoric organism preserved in petrified form or as a mold or cast in rock
B. the body of a dead organism such as a dinosaur
C. the bones of an animal that has died and been buried in sand
D. something that is very old or ancient that has been found or studied by scientists
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Embryos of different species look very similar, which shows that the organisms share a ancestor.
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Consider the elements bromine and chlorine; which elements has a larger ionic radius ?
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What is the molar mass of potassium nitrate, kno3
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What is the definition of a fossil?
A. the remains or impression of a prehistoric organism preserve...
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