Question

Explain major features of meridians.

Answer 1

The following are the major features of meridians:
* Meridians are equal in length.
* The longitude running through the Greenwich near London was first chosen as the Prime Meridian (Prime Meridian means chief or main meridian) having noon at the same time at all places on this line.
- It is the $0^{\circ }$ longitude.
- It divides the earth into eastern and western hemispheres.

- They are semi-circles.
- They are 360 in all: 180 in the East and 180 in the West of Prime Meridian. ${180}^{\circ }E$ and ${180}^{\circ }$ W is one longitude.