Which describes the motion of the media for a surface wave?
a. the motion is parallel to wave direction
b. the motion is both parallel and perpendicular to wave direction.
c. the motion is perpendicular to wave direction.

the motion is both parallel and perpendicular to wave direction B

ill do it for 100, also this isnt 80 its 40

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