Flvs what is on the module 8 dba for chemistry

Iwll give extra points to who gets this for ! what type of reaction is this? ?

When the volume and number of particles of a gas are constant which of the following is also constant

Rocks, as they are compressed, begin forming mountains above the earth's surface when two continental plates converge. the continental crust increases in depth as the mountains grow above. the himalayan mountains formed at a convergent plate boundary in this manner. the rocks are smashed together causing them to due to the intense heat and pressure from the colliding plates and eventually forming rock. a) melt; igneous b) layer; sedimentary c) recrystallize; metamorphic d) melt into the earth's interior; metamorphic