Mountain ranges often appear on the edges of continents. What theory does this support?

A. Mountains were formed when Earth's crust cooled and Earth shrank.

B. Mountain ranges were formed when continents collided.

C. Mountain ranges did not exist millions of years ago.

D. Mountain ranges were formed only by glaciers.

B! the earth would of had to smash together to make the land go up into the air

The correct answer is the following: option B. Mountain ranges were formed when continents collided. A mountain range or a hill range is a series of mountains and/or hills arranged in a line and connected by high round. Mountain ranges are a result, in most cases, of a geological process called a plate tectonics, which is the motion of large plates, like continents. This theory that supports the concept of continents colliding, explains why there are mountain ranges.