What is the theme of the car we had to push?

a. are

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

electric field is a function of 1/r^2

yes, the force per unit charge for a point charge is inverse square law.

snell's law

refractve index = sin incidence / sin refraction