Question

Which of the following is true about lines of longitude?

Options

• They run parallel to the Prime Meridian.

• They are full circles.

• They are 360 lines at 1° interval.

• All of the above.

Answer 1

They are full circles.

Explanation:

1. This is incorrect because lines of longitude do not run parallel to the Prime Meridian. They are meridians and converge at the poles, unlike latitude lines, which are parallel.
2. This is correct. Lines of longitude are indeed half-circles that run from the North Pole to the South Pole, with the Prime Meridian being the starting point.
3. This is partially correct, but there are 360 lines of longitude, not at a 1° interval, but every 1° from 0° to 180° East and 180° to 0° West.