Question

This landform, known as a _______ , forms the boundary between land and the ocean.

Answer 1

Answer

This landform, known as a Coastline (or coast), forms the boundary between land and the ocean.

Explanation:

The coast is also known as the coastline and is the area where land basically connects to the sea or ocean, or we can also say that this is a line that forms the boundary between the land and the ocean or a lake. Both the terms coast and coastal are usually used to represent a geographic location. The coastline is used for agriculture, human settlement, industry,  trade, and amenity.

Answer 2

He/she is correct it is Coastline.