SSC MTS EXAM

Detailed explanation-1: -The prime meridian, or 0 degrees longitude, and the International Date Line, 180 degrees longitude, divide Earth into Eastern and Western Hemispheres. Many geographers consider the 20 degree west line of longitude and the 160 degree east line of longitude as the Eastern and Western Hemispheres.

Detailed explanation-2: -The prime meridian and the International Date Line create a circle that divides Earth into the Eastern and Western Hemispheres. This is similar to the way the Equator serves as the 0° latitude line and divides Earth into the northern and southern hemispheres.

Detailed explanation-3: -Longitudes for the Earth and Moon are measured from their prime meridian (at 0°) to 180° east and west. For all other Solar System bodies, longitude is measured from 0° (their prime meridian) to 360°.