Question

State the importance of the Prime Meridian.

Answer 1

• Reference for Longitude: It serves as the starting point for measuring longitude. All other lines of longitude are measured in degrees east or west from the Prime Meridian (0°).
• Timekeeping: The Greenwich Mean Time (GMT), based on the Prime Meridian, is used as the standard time reference worldwide. It helps in establishing time zones across the globe.
• Dividing the Earth: The Prime Meridian divides the Earth into the Eastern Hemisphere and Western Hemisphere, helping in geographic and cultural distinctions.
• Global Navigation: It is a critical reference for global navigation, allowing precise location identification on maps and charts.