Which place in the world has equal days and nights throughout the year?

Question

I want to know that which place in the world have equal days and nights through out the year. I’m not asking about the equinox. This question was asked to me in my college quiz. And the choices given in the quiz were:
1.At Equator
2.At Poles
3.At Prime Meridian
4.In Antarctica

I don’t know anything about the Prime Meridian.

Answer 1

The Equator is the best answer but it does not entirely fit the question. One answerer stated that he intuited that the answer must be the Prime Meridian. This is incorrect. There is nothing special about the Prime Meridian beyond the fact that it is defined as 0 degrees longitude. The Prime Meridian is no different than any other meridian insofar as spherical trigonometry is concerned. The Prime Meridian goes through the observatory at Greenwich, England. It could be anywhere else and things would still work just fine.

Answer 2

I am going to disagree with every answer so far. Think about it, the equator goes around the earth, in a latitude direction. Well, our time zones, which are affected by the daylight savings times, run longitude, and change the further east or west you go. so wouldn't that make it so the days change along the equator the further east or west you went along it? The prime meridian makes more sense to me... being that is where the time zones originate from. Granted, the far north end of Prime Meridian might have different days and nights than the south end, but standing at any point along the Prime Meridian and you should have equal days and nights at that particular location.

Answer 3

The answer is number one, at the equator. The poles are dark for six months out of the year, Antarctica covers one of the poles, and the Prime Meridian is a line of longitude, so if you're on the PM the days are much different at 10 degrees latitude than they are at 80 degrees latitude.

Answer 4

Equator

Answer 5

the closest to true answer is the equator but even there days and nights do vary a small bit

Answer 6

equator

Answer 7

equator