Complete the passage about the process of subduction. The subduction of ___ boundary often forms volcanoes. This phenomenon occurs because the underground pressure squeezes water out of the dense crust, and this water works its way into the mantle. The water ___ the mantle and allows for the creation of magma.

1st blank:
continental crust at a divergent
oceanic crust at a convergent
oceanic crust at a transform
continental crust at a convergent

2nd blank:
heats up
lowers the melting point of
freezes and thaws in
washes away

PLATO