What term describes the distance east or west of the Prime Meridian, measured in degrees, with lines running from north to south?

• A. Latitude
• B. Longitude
• C. Grid System
• D. Cartographer

Answer: (B)

This question tests how we name the system that measures position east or west on Earth. Longitudes describe how far east or west you are from the Prime Meridian, in degrees, and their lines run from the North Pole to the South Pole. The Prime Meridian is the zero reference line that passes through Greenwich, and the opposite side is 180 degrees.

So the term that fits is longitude. It’s defined by those north–south lines, called meridians, and it specifically captures east–west location. In contrast, latitude refers to distance north or south of the Equator and uses lines that run east–west. The other options describe a general mapping framework or a person who creates maps, not the measure described.