Which projection wasused by early sailors to navigate around the globe?

Mercator invented his map projection primarily for navigation. If you draw a straight line between two points on a map created using the Mercator projection, that line represents the direction you need to sail to travel between the two points. This type of route is called a rhumb line or loxodrome.

Explanation:

d.) continue to rise rapidly

answer; disconfirm the catharsis theory;