Which landform represents the boundary between the land and an ocan or lake
2 answers:
A) a coastline represents the boundary between land and the ocean or a lake.
First of all, a coast is where land ends and the sea/lake starts.
Therefore, the coastline, is the "border", or as you said it, the boundary between the continent and a sea or in some cases a lake.
Answer:

Hope it helped,
BioTeacher101
You might be interested in
The supply of warm, moist air decreases.
Enzymes to break down lactose into glucose and galactose digestion.
The second answer is b. third answer is c
Select ALL that apply:
- They have structures called pseudopods which help them move through water,
- They are unicellular organisms,
- They are heterotrophic organisms.
Since fire is a chemical reaction, and oxygen is needed for that reaction, having a fire in a cave is a sure sign of the presence of oxygen.