Fact 1: Tectonic plates being pushed together causes earthquakes.

Fact 2: On Earth, mantle convection causes plate tectonics, volcanism, and earthquakes.

Given the two facts above, answer the question "Mantle convection causes what?" with the following options: 
- demolitions
 - global warming
 - earthquakes
 - forest fires
 - erosion
 - tsunamis
 - heat energy
 - heating liquids


 

   earthquakes      