Answer:
The most important function of Latitudes (along with Longitudes) is that they help in pinpointing the exact location of each point on the earth. 
Step-by-step explanation:
1: Latitude lines are the circle on globe in an east-west direction. These lines are also called as parallel lines. 
 
2: Latitudes measure how far north or south a point lies from the equator. 
 
3: The equator is at zero degrees latitude and separates earth's northern and southern hemisphere . 
 
4: Locations north of the equator have latitudes between zero degrees and 90 degrees N. 
 
5: Locations south of the equator have latitudes between 0 degrees and 90 degrees S.