The straight line between the poles is the Earth's axis of rotation.
The curved lines between the poles and along the surface are the meridians
of longitude.
In the globe it is called the axis. In a sphere it is called the diameter.
The Equator crosses South America, about 20% of South America is north of the equator and 80% is south of the equator.Both, actually. The equator line runs through the northern part. But, the majority of South America is south of the equator.
The Prime Meridian is a line of longitude (0°). It goes through every north or south measurementbetween the north pole and the south pole, and no other lines of longitude cross it.
It's possible to get closer to the equator by going north through Argentina than by going south through Spain, but I am not in either of those places.
The Prime Meridian ends at both the North Pole and South Pole.
The Axis
In the globe it is called the axis. In a sphere it is called the diameter.
Meridians are lines of longitude that are drawn from the North to South poles.
because it is typically drawn below (south of on maps) the north bridge when drawing schematics.
In plane (Euclidian) geometry there is only one line through two points. On a sphere, every meridian intersects the north and south poles.
The prime meridian
I-75 North/South through Knoxville and Chattanooga I-65 North/South through Nashville I-40 East/West through Memphis Nashville and Knoxville I-55 North/South through Memphis I-81 North/South between Knoxville and Johnson City
No. The equator is an imaginary line drawn on the Earth's surface, all the way around, mid-way between the north and south poles.
I-75 North/South through Knoxville and Chattanooga I-65 North/South through Nashville I-40 East/West through Memphis Nashville and Knoxville I-55 North/South through Memphis I-81 North/South between Knoxville and Johnson City
Latitude is imaginary lines that measures distance north or south of the equator. Longitude is imaginary lines that measures distance east and west of a line drawn between the North and South Poles and passing through the Royal Observatory at Greenwich, England.
south Dakota and north Dakota
The Green Mountains run north to south through the state of Vermont.