Question

which term names a property of a mineral?
o sharpness
o composed of carbon
o streak
o reflection

Explanation:

Streak is a property used to identify minerals by the color of the powder it leaves when rubbed on a hard, unglazed surface. Sharpness is not a mineral property term. Being composed of carbon describes a composition rather than a property. Reflection is more related to light - related properties of surfaces in general, not a specific mineral - identifying property like streak.

Answer:

C. streak