Final Answer:
As you move toward the poles, the distance between each line of longitude becomes smaller.
Step-by-step explanation:
Lines of longitude, also known as meridians, converge at the poles. The Earth's shape, an oblate spheroid, causes the lines of longitude to gradually come together as one moves from the equator towards the poles. This convergence means that the distance between each line of longitude decreases as you approach the poles.
At the equator, the lines of longitude are spaced farther apart due to the Earth's wider circumference. However, as you move towards the poles, the lines converge, and the longitudinal distance between them diminishes. This phenomenon is a result of the Earth's curvature and is essential to understanding navigation and geographic coordinate systems.