Why The intervals between succesive parallels are equal?

The intervals between successive parallels, or lines of latitude, are equal because they represent degrees of angular measurement from the Earth's equator to the poles. Each degree of latitude corresponds to approximately 69 miles (111 kilometers) on the Earth's surface, maintaining consistent spacing regardless of the Earth's curvature. This uniformity allows for a straightforward division of the globe into 360 degrees, with each degree remaining equidistant from its neighbors. Thus, the intervals are equal due to the geometric nature of the Earth's spherical shape.