When light strikes the second medium what are the two things that happen?

Which coal field location is related to coal fields in the eastern united states and supports the theory of continental drift? eastern india southern africa western australia northern south america

The main ingredient of magma is a pahoehoe. b silca c dissolved gases d obsidian

How long does it take a skateboarder going 6.0 m/s to come to a complete stop if she slows down at a rate of 2.0 m/s^2