The coordinates 0N 100E are in the West Pasaman province of the island of Sumatra, Indonesia.
Antarctica is located 0 degrees north and 40 degrees east.
That point is in western Borneo (Indonesia), about 45 miles east of Pontianak.
Every meridian between zero and 180 degrees east longitude is east of 0 degrees. There are an infinite number of them.
There is no country as zero degrees latitude and zero degrees longitude. This location is in the Atlantic Ocean
That point is in Algeria. There are also trillions of other points in Algeria, each with different latitude and longitude. There's no such thing as the latitude and longitude of a whole country.
Antarctica is located 0 degrees north and 40 degrees east.
Gabon
Antarctica is located 0 degrees north and 40 degrees east.
Kenya.
Kenya
Kenya
That point is in western Borneo (Indonesia), about 45 miles east of Pontianak.
That point is in southwestern Uganda. Other points in the same country have significantly different coordinates.
That is between Valencia and Barcelona on the East coast of Spain
Every meridian between zero and 180 degrees east longitude is east of 0 degrees. There are an infinite number of them.
Indonesia
France. 0 degrees (east) is the Greenwich meridian which runs from the North Pole, through London, to the South pole. 45 degrees north is hlafway between the equator and the North Pole.