Answer:
Deep ocean trenches, volcanoes, island arcs, submarine mountain ranges, fault lines, ETC.
Explanation:
A structural limit where two plates are advancing toward one another. In the event that the two plates are of equivalent thickness, they ordinarily push facing one another, shaping a mountain chain.
d is the correct answer I belive. hope this helped>>
Answer:
A majority of the Atlantic Coastal plain is flat, there are no hills or mountains in this region of North America. It contains a lot of sedimentary rock and is primarily used in farming/agriculture. This area of land has good access to the sea. This area also features large embayments with drowned river valley's and many wetlands and marshes.
Hope this helps :)