Molecules can be composed of pl me fast im giving 89 pts

Molecules made up of two or more elements are called compounds. Water, calcium oxide, and glucose are molecules that compound.

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:

the awnser is group 12