Question

Write a note on Longitudes.

Answer 1

1. The imaginary lines drawn vertically connecting the North Pole and the South Pole are called lines or meridians of longitude.
2. These lines of longitude are seen as semi-circles.
3. The 09 lines of longitude are called the Prime Meridian.
4. There are 180 lines of longitude towards the East and West from the Prime Meridian.
5. So there is a total of 360 lines of longitude.
6. These lines converge at the poles. The 180°W and 180°E lines of longitude is the same line.
7. The lines of longitude that are found between the Prime Meridian and the 180° East line of longitude are called Eastern Longitudes.
8. The lines of longitude that are found between the Prime Meridian (0°) and the 180° West line of longitude are called Western Longitudes.
9. The part of the Earth between the 0° line of longitude and the 180° East line of longitude is known as the Eastern Hemisphere.
10. The part of the Earth from the 09 lines of longitude to 180° West line of longitude is called Western Hemisphere.