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Item WE007002: Both the growth of plant roots and the freezing of water can break earth's solid rock layer.

Which of the following can break solid rock?

  1. Growth of plant roots but not movement of glaciers
  2. Movement of glaciers but not growth of plant roots
  3. Both growth of plant roots and movement of glaciers
  4. Neither growth of plant roots nor movement of glaciers can break solid rock.
Distribution of Responses
Chart showing distrubtion of responses for Item WE007002
Students Responding Correctly
Group Correct Total Percent
Overall 421 686 61%
  6–8 260 430 60%
  9–12 160 251 64%
Primary Language

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