Which statement is true about solutions? group of answer choices solutions are made of up of two substances that are chemically combined. solutions are mixtures that can be physically separated. solutions are heterogeneous and can be physically separated. solutions are homogeneous and must be chemically separated.

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