Based on this topographic profile across the central United States, which region probably has the thickest crust?
A) Colorado Rockies
B) Great Plains
C) Mississippi River
D) Appalachian Mountains
E) East Coast

Question

Based on this topographic profile across the central United States, which region probably has the thickest crust? 
A) Colorado Rockies 
B) Great Plains 
C) Mississippi River 
D) Appalachian Mountains 
E) East Coast

Quizplus · Accepted Answer

The Answer of Based on this topographic profile across the central United States, which region probably has the thickest crust? 
A) Colorado Rockies 
B) Great Plains 
C) Mississippi River 
D) Appalachian Mountains 
E) East Coast

Based on This Topographic Profile Across the Central United States