The latitude of a place expresses its angular position relative to the place of:

One degree of longitude on the equator is equal to a distance of:

Latitude of place is indicated of its:

Which one of the following cites does not have same clock time as that of the other three cities at any given instant?

The place which has the longest day and the shortest night on 22nd December is:

Geostationary orbit is at a height of:

Owing to the equatorial bulge and the polar flattening, the polar radius of the earth falls short of the equatorial radius by about:

The earth is at the least distance from the sun (Perihelion) on:

What is the International Date Line?

The time at Cairo is 2 hours ahead of Greenwich. Hence, it is located at: