Question

which sequence lists types of materials in order from least conductive to most conductive?
o superconductor → conductor → semiconductor → insulator
o insulator → conductor → semiconductor → superconductor
o conductor → superconductor → semiconductor → insulator
o insulator → semiconductor → conductor → superconductor

Explanation:

Insulators have the lowest conductivity (block current flow), semiconductors have moderate conductivity (varies with conditions), conductors have high conductivity (easily carry current), and superconductors have zero electrical resistance (highest conductivity at low temps). This matches the last option.

Answer:

insulator → semiconductor → conductor → superconductor