Which statement explains what happens as magma rises inside a volcano?

gases contract.
gases disappear.
pressure decreases.
magma moves to other chambers.

When Magma Rises Inside A Volcano The Fluid Flows Up Into The Mantle Rick Above And Changes It’s Chemistry, Causing It To Melt. (Forming The Magma) If The Pressure Gets High Enough The Magma Can Break Through The Crust And Spew Out In A Volcanic Eruption.

i think its gases contract

Explanation:

answer; (d) melting of sea ice;