When molten magma cools under the surface, it forms igneous rocks. A. rapidly, intrusive
B. slowly, intrusive
C. rapidly, extrusive
D. slowly, extrusive

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 mantle

explanation:

earth is divided into three layers: the crust or the outermost layer on which we live; the underlying, middle layer - the mantle - and the core (the innermost layer of earth).

i think it's c. i'm not sure but i think so.