12. (01.04 lc)
what best describes the temperature at which a solid turns into a liquid? (4 points)
melting point
boiling point
electrical conductivity
thermal conductivity

d) physical means can be used to separate the components of air.

cant without the picture! ?

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