7. which of the following is an example of a constructive force ? ( 1point )
A. the collapse of buildings in an earthquake

B. the river erosion of the rock walls within the grand canyon

c. the force that created the rocky mountains

c. the eruption of a volcano

Question

7. which of the following is an example of a constructive force ? ( 1point ) 
A. the collapse of buildings in an earthquake 

B. the river erosion of the rock walls within the grand canyon 

c. the force that created the rocky mountains 

c. the eruption of a volcano

stuck_in_the_middle · Answer

The force that created the rocky mountains. When 2 tectonic plates crashes, a mountain is formed.