Water in the vadose zone drains down to the water table, leaving behind a thin coating of water on mineral grains. The vadose zone supplies plant roots near the surface with water.
The vadose zone supplies plant roots near the surface with water.
定位句说vadose zone给植物的根部的表面提供了水。
说明water table不是供给植物根部的，是vadose zone提供水。
所以是C正确
Paragraph 4 implies which of the following about the roots of plants?
A.They prevent water from reaching the vadose zone.
B.They mark the boundary between the vadose zone and the water table.
C.They do not typically get their water from the water table.
D.They help keep the water table from dropping farther.
Paragraph 4 is marked with []
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