An aquifer bounded above and below by impermeable layers of rock and clay is called a(n)
A) spring.
B) unconfined aquifer.
C) confined aquifer.
D) water table.
E) artesian well.
Question 2
If one were to map a vertical profile of groundwater resources, which of the following is correct order from top to bottom of an unconfined aquifer?
A) zone of aeration--water table--zone of saturation--impermeable rock
B) zone of saturation--water table--zone of aeration--impermeable rock
C) zone of aeration--zone of saturation--water table--impermeable rock
D) water table--zone of aeration--zone of saturation--impermeable rock
E) impermeable rock--zone of aeration--water table--zone of saturation