What is a coastal plain? A high mound or ridge of sand The boundary between the land and an ocean A flat, low-lying piece of land next to the ocean The piece of land formed when a river splits into smaller rivers

Hi I learned that it is something pretty and it's a flat low-lying piece of land next to the ocean

Explanation:

A coastal plain is flat, low-lying land adjacent to a sea cost. A fall line commonly marks the border between a coastal plain and a piedmont area. Some of the largest coastal plains are in Alaska and the southeastern United States.

Explanation:

you have to draw the persons position over there

the answer is f1 and d2 because if you put equal force on those two points the beam would balance trust me on this