If the continents were once joined together, rocks and mountain ranges on the margins of each should have ____.
A)formed under the same conditions and in the same sequence
B)formed the same sequences but at different times
C)formed under different conditions at different times
D)formed different sequences at the same time
E)slowed down the process of continental drift
Question 2
____________________ are features of a submergent coast where freshwater and seawater mix in drowned river valleys.
Fill in the blank(s) with correct word