Question

What causes the change in day and night?
(a) Rotation of the earth
(c) Sidereal motion 27
(b) Revolution of the earth
(d) Synodic motion​

Answer 1

Answer:

I think the answer will be options no. ( B)

Answer 2

Answer:

the ans is a because rotation is the process in which the earth use to rotate at its own place and at that time half part of the earth is in front of sun so there will be day and other part will be night which is facing dark univeres .

I think you get the ans plz support me I am also a student of 8 class.