0° Longitude is considered as :AThe prime meridianBThe EquatorCThe International Date LineDThe standard meridian of IndiaAnswer: A. The prime meridian Read Explanation: The Prime MeridianThe Prime Meridian is the starting point for measuring longitude (east and west) around the globe. It passes through the Royal Observatory in Greenwich, London, which is why it is also frequently called the Greenwich Meridian.The Equator : This is 0° Latitude, not longitude.International Date Line : This is roughly 180° longitude (the "back" of the Prime Meridian).Standard Meridian of India: This is 82°30' E, used to set the time for all of India. Read more in App