The broad range of electromagnetic waves with the longest wavelengths and lowest frequencies.

a. light waves

b. radio waves

c. infrared waves

d. gamma waves

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