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Earth Sciences 15 Online
OpenStudy (anonymous):

*Medal and Fan question* Which of these has a core made of ice, dust, and rock? A. asteroids B. comets C. meteors D. stars help

OpenStudy (anonymous):

Comets

OpenStudy (gottennis121):

Here is clarification that the answer is comets. Good Job @bre123, but could you explain why next time? http://www.space.com/53-comets-formation-discovery-and-exploration.html

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