[Q]: Sentence: However, in other alloys, the insoluble elements may not separate until after crystallization occurs. Question: What are alloys called when the insoluble elements don't separate until after crystallization occurs?
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[A]: no

[Q]: Sentence: Northern hardwood forests are especially negatively impacted by invasive worms through the loss of leaf duff, soil fertility, changes in soil chemistry and the loss of ecological diversity. Question: Where did most of the current earthworms in glacial areas come from?
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[A]: no

[Q]: Sentence: This large collection of meteorites allows a better understanding of the abundance of meteorite types in the solar system and how meteorites relate to asteroids and comets. Question: Beside rare types of meteorites, what other types of meteorites have been found in Antarctica?
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[A]:
no