The relationship between a distance on the map and the corresponding distance on the ground.

• A. Protractor
• B. Scale
• C. Photostat
• D. Pull-u

Answer: (B)

The relationship between a distance on the map and the corresponding distance on the ground is governed by map scale. Scale expresses how map measurements translate into real-world distances, using a ratio, a graphic bar, or a written statement to show how many ground units match each map unit. The best choice captures this idea because it specifically describes the linkage between map distance and actual ground distance. For example, a 1:50,000 scale means that 1 unit on the map equals 50,000 of the same units on the ground; 4 cm on the map would correspond to 2 km on the ground (4 cm × 50,000 cm per cm = 200,000 cm = 2,000 m). Other options don’t relate to measuring distances on maps: a protractor measures angles, a photostat copies documents, and the remaining term isn’t a map-related tool.