Please help fast! I will give brainliest!

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

Anitrogen atom and an oxygen atom combine chemically to form nitric oxide. what is nitric oxide?

Is it safe to take 450mg of diphenhydramine hydrochloride?