Which is a chemical property of iron

a chemical property of iron is the ability to change it, hammer it, roll it, shape it etc

The chemical property of iron would be rusting in damp air

Explanation:

indicate valleys, hills, steepness and gentleness of slopes.

explanation:

contour lines on a map indicate elevation, or depth. numeric notations on contour lines refer to the level of elevation, or height about sea level.

12 is it do you think so