Igneous - Formed either inside the earth (called intrusive rocks) when molten lava cools or formed outside the earth (called extrusive rocks) when a volcano erupts and the lava cools.
(the earth; called; intrusive rocks) (a volcano; erupts; ) (lava; cools; T:when molten) (lava; formed; L:outside the earth)
the earth a volcano lava lava
called erupts cools formed
intrusive rocks
T:when molten
L:outside the earth