Why are intensive properties useful for identifying a substance? A. They are physical properties
B, they do not depend on the amount of substance you have.
C, they are chemical properties
D, they describe the amount of substance you have

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 answer is 0.8m.

by: nicholas