Caprocks are:
a. resistant rock layers that form the upper surface of mesas and buttes.
b. a crust of salt crystals accumulating on the surface due to evaporating groundwater.
c. hat-shaped rocks on top of thin, rock pedestals.
d. landforms created by eolian erosion.
e. areas of bedrock covered over by sand dunes.
Question 2
Most desert streams:
a. are ephemeral.
b. have exterior drainage.
c. are perennial.
d. meander.
e. reach ultimate base level.