A property unique to a conducting substance that determines its resistance is called:

A. conductance

B. resistivity

C. proclivity

D. circuitry

B. Resistivity

Explanation:

Resistance offered by a substance of unit area per unit length.

ill do it for 100, also this isnt 80 its 40

the first american roller coaster was the mauch chunk switchback railway, built in the mountains of pennsylvania in the mid-1800s. the track, originally built to send coal to a railway, was reconfigured as a "scenic tour."