During the formation of metamorphic rocks, what leads to increased heat? check all that apply.

sun warms rocks.
magma pockets rise.
friction occurs between sliding rocks.
lava at earth’s surface flows over rocks.
rocks beneath earth’s surface are forced toward the mantle.

Explanation:

Magma pockets rise.

Rising magma pockets are the chief heat source that drives contact metamorphism. Hot magma making its way into higher crustal levels raises the temperature of country rocks to a point where metamorphic change is induced.

Friction occurs between sliding rocks.

Frictional sliding of rocks can yield substantial frictional heat for a rock to undergo metamorphic change. As rocks begins to slide into deeper crustal levels, a geothermal gradient is set up and heat from within the earth can lead to change in rock.

magma pockets rise

rocks beneath earth's surface are forced toward the mantle

Explanation:

1.solid

2.carbon dioxide

3.helium