A longitude line that runs north-south is called a

A longitude line that runs north-south is called a

• A. Equator
• B. Parallel
• C. Prime meridian
• D. Meridian

Answer: (D)

Longitudes are the lines that run from the North Pole to the South Pole. Because they travel north–south, they’re called meridians. The prime meridian is one specific meridian set at 0 degrees that serves as the reference line for measuring longitude, but the general term for any north–south line is meridian. In contrast, the equator sits at 0 degrees latitude and runs east–west, and parallels are lines of latitude that also run east–west. This is why the north–south, pole-to-pole line described is a meridian.

Longitudes are the lines that run from the North Pole to the South Pole. Because they travel north–south, they’re called meridians. The prime meridian is one specific meridian set at 0 degrees that serves as the reference line for measuring longitude, but the general term for any north–south line is meridian. In contrast, the equator sits at 0 degrees latitude and runs east–west, and parallels are lines of latitude that also run east–west. This is why the north–south, pole-to-pole line described is a meridian.