15. Answer briefly II

NoYes, the stars may or may not movedoes not movemove in the sky.

 

Stars appears to rise in the west in the early morningeast in the morningeast in the evening and sets in the east in the eveningwest in the morningwest in the early morning. It is due to the revolutionrotationaxis of the Earth, which is from east to westnorth to southwest to east. This is the reason why the stars appear to move from east to west.