Answer:
shoreline
Explanation:
The continental margin is made up of the continental shelf, the continental slope, and the continental rise. The continental shelf begins at the shoreline. It is flat and its width varies.
 
        
             
        
        
        
d. In both regions, only plants that can adjust to extreme temperatures can survive
A is not correct, because they need water, and that they have to be able to survive with LITTLE water
hope this helps
        
             
        
        
        
By studying seismic waves
        
             
        
        
        
4 minutes mean 1 degree of longitude
There is 150 minute difference
17 degree 30 minutes west is longitude