When volcanoes erupt and the liquid rock comes up to the earth's surface, then new igneous rock is made.
(volcanoes; erupt; ) (the liquid rock; comes up; to the earth's surface) (new igneous rock; is made; T:When volcanoes erupt and the liquid rock comes up to the earth's surface; T:then)
volcanoes the liquid rock new igneous rock
erupt comes up is made
to the earth's surface
T:When volcanoes erupt and the liquid rock comes up to the earth's surface T:then