That's the equator . . . the line comprised of all points with zero latitude.
Prime meridian, from which longitude is measured both east and west, is the main line of longitude.
The main line of latitude is the Equator (zero latitude).
The main line of latitude is called parallel. These lines would include the equator, Tropic of Capricorn, Tropic of Cancer, Antarctic Circle and the Arctic Circle.
The equator is the origin for the lines of latitude
the answer to that is the EQUATOR.
Latitude and longitude are angles, and can be expressed in any angle unit. The 'degree' and its sub-divisions have always been the most popular.
There's no such thing as "the closest line". There's no standard set of "lines" that everybody must use. You can draw a line on your map at ANY latitude. The main door of the terminal building at Billy Bishop Toronto City Airport is located at 43.6316° north latitude 79.3959° west longitude. There are an infinite number of other points in Toronto, and most of them are located at different latitudes.
Marion is a big place, and every point has a different set of latitude and longitude. The center of the intersection of Main St. and Mill St (US-6) is located at 41.70192° north latitude 70.77101° west longitude.
No. The equator is the main line of Latitude, and how we measure how far North or South we are. The equator is at zero degrees latitude... The North Pole is 90 degrees North; the South Pole is 90 degrees South. Logitude is a measurement about how far we are East or West from Greenwich, England.
The main lines of latitude are the equator, the Tropic of Cancer, the Tropic of Capricorn, the Arctic Circle, and the Antarctic Circle. The main lines of longitude are the Greenwich (pronounced grenich) Meridian, or Prime Meridian, and the International Date Line.
Geography is the main science and technology in longitude and latitude.
The other name that is used for lines latitude is parallels. The main latitude is the equator which is at zero degrees.