Answer:
1) (d)
2 (a)
3 (d)
4 (d)
Step-by-step explanation:
1) Like earth, sun also illuminates half of the moon 's surface at a time.
2) The point on the earth orbit which is closest to the earth is called perigee.
3) Any object that revolves around another object in space is called satellite.
4) Venus has very little effect on the formation of tide on the earth as it is far off from it.