The index of refraction of a substance is 1.5. find the sine of the angle of refraction if the sine of the angle of incidence is 0.15.

sin r =

The answer is: c. from underground

Aand b antarctica is a north pole.  field lines enter earth near the north pole.the magnetic pole near antarctica is a north pole.compasses point toward a magnetic pole that is a north pole.field lines circle earth from east to west.a compass can lead a hiker to the geographic north pole.

Iwould think it would be 2.6

There are no answer choices, but a metaphor is a comparison between two objects that are not usually related without using like or as.