Explain why a map with a scale of 1 cm to 100 km is a small-scale map.

A map with a scale of 1 cm to 100 km is called a small-scale map because a small unit of 1 cm on the map represents a very large distance of 100 km on the ground. Such maps show a large area with limited detail, highlighting only major features like countries, states, or large cities, not finer local details.