The law that states rock layers closest to the surface are the newest or youngest rock is law of original horizontality law of superposition law of original lateral continuity law of gravity and oppositional force law of cross-cutting relationships

The star betelgeuse is about 600 light-years away. if it explodes tonight, a. we'll know because debris from the explosion will rain down on us from space.b. we'll know it immediately because it will be brighter than the full moon in the sky.c. we won't know about it until 600 years from now.d. none of the above.