PLz help!! WIll MARK BRAINLIEST 2) (Mostly from 4.13, however there are more examples throughout unit 4) What contributions did the scientists discussed in this unit make to our understanding of astronomy and the universe? (for example – Kepler, Copernicus, Hubble)

in cartography, a contour line (often just called a "contour") joins points of equal elevation (height) above a given level, such as mean sea level. a contour map is a map illustrated with contour lines, for example a topographic map, which thus shows valleys and hills, and the steepness or gentleness of slopes.

explanation:

i just learnt this recently but i need to look through my notes again