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Question generated: A student wants to cut a piece of string for a class activity. The length of the string is measured BEST in which units?

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Question generated: Hydrogen gas and oxygen gas combine to form water. Which would be a more concise way of expressing what happens in this chemical reaction?

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Question generated: Nuclear fusion is the source of energy for stars. Besides hydrogen, which other element is most likely also common in stars?

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Question generated:
Which statement describes animal embryos?