If folded land can't bend anymore, it cracks and breaks into big blocks that move along faults in different directions, grinding and sliding against each other and creating tension. the shockwaves caused by that tension create a. volcanoes. b. earthquakes. c. tsunamis. d. hurricanes.

The correct answer is B. earthquakes  
Those big blocks of folded land underneath the Earth’s surface are called Tectonic Plates. When they slide around and graze each other, they cause shockwaves and seismic waves which we call Earthquakes. Earthquakes happen all the time but some are so weak that they cannot be felt by people on the surface.  

Answeraquifer;