Where are tides significant agents in coastal erosion?
A) On barrier islands
B) Along shorelines of submergence
C) In narrow bays
D) On the ocean bottom
E) Equally on all coastlines
Question 2
The oceanic tides rise and fall in a rhythmic cycle that takes place roughly once every ________ hours.
A) 4
B) 6
C) 12
D) 18
E) 24