Explanation:

When a large-scale area is shown on a small map, it is called a small scale map. This means that the ratio between the size of the area on the map and the actual size of the area on the ground is small. In other words, a small scale map covers a large geographic area but with less detail.

Why it is called a small scale map:

A small scale map is called so because it represents a small fraction of the actual size of the area being depicted. The term "scale" refers to the ratio or proportion between the distances on the map and the corresponding distances on the ground. In a small scale map, this ratio is small, meaning that the distances on the map are greatly reduced compared to the actual distances on the ground.

Characteristics of a small scale map:

- Covers a large geographic area: A small scale map typically covers a large geographic area, such as an entire country or continent. This allows for a broad overview of the area but with limited detail.
- Less detail: Due to the reduced scale, a small scale map provides less detail compared to a large scale map. Features such as roads, rivers, and landmarks may be generalized or omitted altogether.
- Useful for regional planning and navigation: Small scale maps are commonly used for regional planning, strategic decision-making, and navigation purposes. They provide an overall view of an area and help in understanding the spatial relationships between different features.
- Smaller map size: Since a small scale map covers a larger area, it is often presented in a smaller physical size compared to a large scale map. This allows for easy portability and use in various contexts.

Conclusion:

A small scale map is used to represent a large-scale area on a map with reduced detail. It is called a small scale map because the ratio between the size of the area on the map and the actual size of the area on the ground is small. These maps are useful for regional planning, navigation, and providing an overview of a large geographic area.