The imaginary line of Zero degree longitude which passes through Greenwich is called? A) Meridian B) Equator C) Tropic of Cancer D) Tropic of Capricorn Related MCQs: The line of latitude which is as large as any line of longitude is the: What is the time difference between one degree of longitude? An imaginary line passing laterally from one side to the other is called? On the linguistic map, a line indicating the degree of linguistic change is called ……?