The Moon completes one revolution around Earth every _____.
a. 29.5 seconds
b. 29.5 minutes
c. 29.5 hours
d. 29.5 days
e. 29.5 days
Question 2
A coast that is tectonically quiescent, with little mountain-building or volcanic activity, is known as a(n) _____.
a. coastline of emergence
b. active-margin coast
c. barrier beach
d. passive-margin coast
e. coastline of submergence