Fact 1: Igneous rocks are formed from magma cooling.

Fact 2: Magma that erupts through volcanoes is known as lava.

Given the two facts above, answer the question "Igneous rocks are what through volcanoes erupting and lava?" with the following options: 
- cracking
 - mandated
 - formed
 - blastoids
 - evolved
 - tube
 - disturbed
 - started


 

   formed      