Why does the length of latitudes decreases as we move away from the equator?

The length of latitudes decreases as we move away from the equator due to the curvature of the Earth. At the equator, the lines of latitude are widest, representing the Earth's maximum circumference. As you move towards the poles, these lines converge, resulting in shorter distances between them. Consequently, the space covered by each degree of latitude diminishes as you approach the poles.