This layer of Earth is divided into two sections, both of which primarily contain silicate minerals. Part of one of the sections is able to flow like a thick fluid. What is this layer known as? A Outer core
B Mantle
C Inner core
D Crust

mantle

Explanation:

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: