The vadose zone differs from the groundwater zone in what way?
A) The Earth materials in the two zones are different.
B) The vadose zone is unsaturated, while the groundwater zone is saturated.
C) The vadose zone lies below the groundwater zone.
D) The vadose zone contains no water, while the groundwater zone does contain water.
B
You might also like to view...
What mineral test is shown in this photograph? 
A. streak B. specific gravity C. magnetism D. scratch test E. effervescence
A river emerges from a valley onto a flat plain, but the river itself lies in a narrow, shallow canyon as it crosses the plain, then plunges into a steep sided canyon as it flow past the plain
A geologist floating down the canyon headed for the whitewater in the canyon notices the river is flowing through lake deposits as it flows across the plain. What happened in this area? A) The river used to flow into a lake, which formed a temporary base level, but in recent geologic time the lakes dam broke, and the river is now downcutting in response to the change in local base level. B) The river has cut a deep canyon that crossed through a lake, and this process has been continuous for a long time. C) The river is at base level throughout its trace and has been for a long time. D) The geologist can't be right; this is an impossible scenario.
________ meteorites are thought to be analogous in composition to Earth's core
A) Stony B) Calcareous C) Ammonical D) Iron
The Moon has been volcanically and tectonically inactive for more than
A. 2 million years. B. 1 billion years. C. 1 million years. D. 2 billion years.