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?
- Wind, water, and the roots of plants can break the rock layer.
- Water and wind can break the rock layer, but the roots of plants cannot.
- Water can break the rock layer, but wind and the roots of plants cannot.
- Neither wind, water, nor the roots of plants can break the rock layer.
Answer Choice |
Overall |
Grades |
Gender |
Primary Language |
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n = 2530 |
6–8 n = 1530 |
9–12 n = 990 |
Male n = 1225 |
Female n = 1262 |
English n = 2232 |
Other n = 226 |
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A. | Wind, water, and the roots of plants can break the rock layer. | 52% | 49% | 56% | 51% | 52% | 52% | 45% |
B. | Water and wind can break the rock layer, but the roots of plants cannot. | 27% | 28% | 25% | 25% | 29% | 27% | 28% |
C. | Water can break the rock layer, but wind and the roots of plants cannot. | 15% | 16% | 13% | 17% | 12% | 14% | 18% |
D. | Neither wind, water, nor the roots of plants can break the rock layer. | 7% | 7% | 7% | 7% | 7% | 7% | 9% |