Item WE014004: Wind, water, and the growth of plant roots can wear away the solid rock of a valley.

Which of the following can break the rock layer that makes up the sides of a valley so that the valley becomes wider?

  1. Wind, water, and the roots of plants can break the rock layer.
  2. Water and wind can break the rock layer, but the roots of plants cannot.
  3. Water can break the rock layer, but wind and the roots of plants cannot.
  4. Neither wind, water, nor the roots of plants can break the rock layer.

Distribution of Responses

Chart showing distrubtion of responses for Item WE014004

Percent of students responding correctly

Overall52%
Grades 6–849%
Grades 9–1256%
Male51%
Female52%
Primary Language is English52%
Primary Language is not English45%

View data table