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Type: Multiple-Choice
Category: Earth's Layers
Level: Grade 6
Score: 3
Author: suzanna7
Last Modified: a month ago

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Earth's Layers Question

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Grade 6 Earth's Layers

Which elements make up most of Earth's crust?
  1. aluminum and magnesium
  2. sulfur and iodine
  3. oxygen and silicon
  4. iron and potassium
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