Question

what is another name for lines of longitude?
currents
equators
meridians

Explanation:

Lines of longitude, which run from the North Pole to the South Pole, are also called meridians. "Currents" relate to fluid movement (e.g., ocean currents), and "equators" refer to the line of latitude at 0° (the equator), so they do not match the definition of longitude lines.

Answer:

C. meridians (assuming the options are labeled A, B, C as currents, equators, meridians respectively)