The two main types of igneous rocks are intrusive, which formed when magma cooled slowly and hardened beneath the earth's surface, and extrusive, which formed when magma solidified after it reached the surface.
(The two main types of igneous rocks; are; intrusive) (magma; solidified; T:after it reached the surface) (it; reached; the surface) (magma; cooled slowly; ) (extrusive; formed; T:when magma solidified)
The two main types of igneous rocks magma it magma extrusive
are solidified reached cooled slowly formed
intrusive
T:after it reached the surface
the surface
T:when magma solidified