GENERAL KNOWLEDGE

Detailed explanation-1: -The prime meridian is the line of 0° longitude, the starting point for measuring distance both east and west around Earth.

Detailed explanation-2: -The meridian that runs through Greenwich, England, is internationally accepted as the line of 0 degrees longitude, or prime meridian. The antimeridian is halfway around the world, at 180 degrees. It is the basis for the International Date Line.

Detailed explanation-3: -The international date line, established in 1884, passes through the mid-Pacific Ocean and roughly follows a 180 degrees longitude north-south line on the Earth. It is located halfway around the world from the prime meridian-the 0 degrees longitude line in Greenwich, England.