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Type: Multiple-Choice
Category: Soil
Level: Grade 4
Score: 2
Author: kelebutler
Last Modified: a month ago

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Soil Question

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Grade 4 Soil

Tree roots reach down into the middle layer of soil, breaking up the rocks there. This soil layer is called                .
  1. bedrock
  2. topsoil
  3. subsoil
  4. parent rock
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