Meridians are lines joining the poles and are also known as what?

• A. Parallels
• B. Equator lines
• C. Latitude lines
• D. Longitude lines

Answer: (D)

Meridians run from the North Pole to the South Pole, forming half-circles that measure how far east or west you are. These lines are called longitude lines. In contrast, lines that circle the globe parallel to the equator are latitude lines (parallels), which measure distance north or south of the equator. The equator is a specific latitude line at 0 degrees, not a meridian. So meridians are known as longitude lines.