Which principle can be used to determine the relative age of an igneous intrusion called a dike?

A) cross-cutting relations
B) superposition
C) original horizontality

Which of the following is NOT a characteristic of a braided stream?

A) multiple channels
B) constant flow
C) abundant sediments

Which of the following is a common setting for a spring?

A) a limestone aquifer that intersects the surface
B) a permeable upper layer with a water table deep below the surface
C) a nonpermeable upper layer with a water table deep below the surface
D) an unconfined aquifer with a water table deep below the surface