on the basis of Scale & Content write the different types of maps and explain
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Answer:
A. Map Scale
Map scale is the relationship between a unit of length on a map and the corresponding length on the ground. We will use concepts of map scale throughout the course, so it will pay you to study this section carefully.
1. Types of Map Scales
We can relate map and ground with three different types of scale. Verbal scale expresses in words a relationship between a map distance and a ground distance. Usually it is along the lines of:
One inch represents 16 miles.
Here it is implied that the one inch is on the map, and that one inch represents 16 miles on the ground. Verbal scales are commonly found on popular atlases and maps.
The second type of scale is a graphic scale, or bar scale. This shows directly on the map the corresponding ground distance. For example:
The third type of scale is a representative fraction, or ratio scale. Compared to the first two, it is the most abstract, but also the most versatile. A representative fraction, or RF, shows the relationship between one of any unit on the map and one of the same unit on the ground. RFs may be shown as an actual fraction, for example 1/24,000, but are usually written with a colon, as in 1:24,000. In this example, one unit of any length (one mm, one cm, one inch, one foot, etc.) on the map represents 24,000 of those same units on the ground (24,000 mm, 24,000 cm, 24,000", 24,000', etc.). The RF is versatile because you are not tied to any specific units. You may work in any unit you choose, either metric, English, or other.
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