Imagine our solar system is moving in the milky way toward a group of three stars. star a is a blue star that is slightly closer to us than the other two. star b is a red star that is farthest away from us. star c is a yellow star that is halfway between stars a and b. which of these three stars, if any, will give off light that appears to have no shift?

In my opinion the Star A will give off light that appears to have no shift.

Explanation:

Due to it is closer to us than the other two, and probably the blue color is brighter than the others.

since there isn't any suggested answers i will give you the reason and hopefully you can figure it

south africa, or rather all of africa, has not been in the location in which it is nowadays throughout the geological past. after the super-continent pangaea started to break apart, gondwanaland, in which was africa, moved further south, and parts of it came to be very close to the south pole. because the climate in this part of the world is very cold due to the very dispersed sun rays in there, what is now south africa, started to freeze, and the conditions were right for the formation of glaciers. the glaciers existed up until the period when gondwanaland started to break apart and what is now africa started to move towards north, sp it warmed up and the glaciers melted.