In a wave, what do you call the difference from crest to crest or trough to trough amplitude crest frequency wavelength

igneous rocks also form where plates converge. the subducting plate melts as it sinks into the crust of the earth, and the melt rises into the overriding plate forming volcanoes. metamorphic rocks are formed mainly in the lithosphere, wherever there is high pressure and high temperature. -woods

the components of a vector are the parts of the vectors that are to each other.

b perpendicular