Latitudinal lines run East West along the earth's surface. An easy trick to remember is thinking "lat is flat" therefore the lines are flat when you are looking at a globe or 2D map.
A line of latitude (a 'parallel') is an imaginary line that circles the globe parallel to
all other lines of constant latitude including the equator. Every point on a parallel
has the same latitude. The parallel doesn't 'run' in any direction.
In which direction does a parallel, or line of latitude, run?
East to west, or around the globe.
Horizontally
Side to side
No line of latitude is a north/south line. A move to the north or south is a change of latitude.
Lines of latitude run east to west.
Lines of latitude run east and west (like rungs on a ladder) and meridians (lines of longitude) run north and south
Parallels would be 2 or more lines that run in the same direction and do not intersect.
If you pick any latitude on Earth, and mark a tiny dot on the map at every pointthat has that latitude, the points will seem to blend into a solid line that circlesthe Earth in the east/west direction. It's a line that has the same latitude atevery point on it.
one direction
No line of latitude is a north/south line. A move to the north or south is a change of latitude.
If a map or a globe has latitude 'lines' printed on it, they will point east-west.
Lines of latitude run east to west.
Latitude lines run from east to west, parallel to the equator. Longitudinal lines are perpendicular to latitude lines and run north to south.
Lines of latitude run east and west (like rungs on a ladder) and meridians (lines of longitude) run north and south
Parallels would be 2 or more lines that run in the same direction and do not intersect.
If you pick any latitude on Earth, and mark a tiny dot on the map at every pointthat has that latitude, the points will seem to blend into a solid line that circlesthe Earth in the east/west direction. It's a line that has the same latitude atevery point on it.
The direction of latitude is horizontal, while longitude is up and down. Lines of latitude run parallel to the equator.
Not all isotherms run in an east-west direction, but most of them do. This is because latitude determines the temperature and climate of different regions. For example, the Tropics have higher temperatures than the Polar regions because it is closer to the equator. Lines of latitude run in an east-west direction, and thus isotherms, which is type of contour line or surface on a map that connects or indicates points of equal temperature, usually run in an east-west direction too.
Meridians of longitude run from pole to pole Parallels of latitude run east-west
The Prime Meridian marks the zero degree line of longitude. The Equator marks the line for zero degrees latitude.