60,000+ students trusted us with their dreams. Take the first step today!
One app for all your study abroad needs
The Prime Meridian is an imaginary line that divides the Earth into the Eastern and Western Hemispheres.
Just like the Equator divides the Earth into the Northern and Southern Hemispheres, the Prime Meridian helps in measuring how far east or west a place is on Earth. It is a vertical line that runs from the North Pole to the South Pole, and it passes through a place called Greenwich, which is in London, United Kingdom.
What is the Value of the Prime Meridian?
The value of the Prime Meridian is 0 degrees longitude. This means it is the starting point for measuring distances to the east or west on the globe. Longitudes are imaginary lines that go from the top of the Earth (North Pole) to the bottom (South Pole), and the Prime Meridian is the central line for these longitudes.
To help us locate places on the Earth, we use a grid of lines called latitude and longitude. While the Equator is at 0 degrees latitude, the Prime Meridian is at 0 degrees longitude. Both are important for finding exact locations on maps and globes.
For example, if a place is located at 30 degrees east longitude, it means it is 30 degrees to the east of the Prime Meridian. If another place is at 45 degrees west longitude, it is 45 degrees to the west of the Prime Meridian.
The Prime Meridian is also important for time. It helps in setting time zones around the world. The time at the Prime Meridian is called Greenwich Mean Time (GMT), which is used as a reference to set the time in other places.
Hence, the correct answer is Option B.
In short, the Prime Meridian is very helpful in geography and navigation. It gives us a starting point to measure how far places are and helps us know the time in different parts of the world. So, whenever you hear 0 degrees longitude, remember — it’s the Prime Meridian!
Common Doubts of Social Science
