what happens immedialety happens before a volcano erupts?
A. magma collects in the mantle
B. lava hardens to form volcanic rock
C. expanding gases push magma through the pipe
D. the temperature in the magma chamber decreases
the correct answer is C) Expanding gases push magma through the pipe. The mantle is already made of magma, the magma cools when the volcano has already erupted, and the temperature does not decrease in the chamber.
