Across: 2. It is described as the hemisphere of the earth that is located to the left side of the prime meridian. 4. It is the unit used in measuring the latitude and longitude of the globe. 5. The opposite of prime meridian. Down: 1. It is described as the hemisphere of the earth that is located to the right side of the prime meridian. 3. It is known as the 00 longitude. 6. An imaginary vertical line that divides the globe into eastern and western Hemisphere.