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Type: Multiple-Choice
Category: Earth's Layers
Level: Grade 7
Score: 2
Author: laurie2962
Last Modified: 21 days ago

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Earth's Layers Question

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Grade 7 Earth's Layers

Earth's inner core is made of which two elements?
  1. oxygen and silicon
  2. iron and nickel
  3. iron and silicon
  4. copper and nickel
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