The nearest planet to the sun is the

The Longitude that joins Longitude 180_o at the opposite side of the globe to from a Great Circle is

Which of the following lines of latitudes divides the earth into two bemispheres?

The part of the earth's crust that is covered by oceans and seas is called

The angular distance of a point on the Earth's surface measured in degrees from the centre of the Earth east or west of the Greenwich Meridian is known as