After walking across a carpeted floor in socks, Jim brings his finger near a metal doorknob and receives a shock.

This demonstrates that

hypothesising or postulating

luster is not a good characteristic to use by itself because luster is the property of minerals that indicates how much the surface of a mineral reflects light. the luster of a mineral is affected by the brilliance of the light used to observe the mineral surface.

a 2,000 calorie based diet.