Compare superconductors and semiconductors with conductors and insulators

Well a superconductor is a metal that acts strangely when cooled down to a certain temperature and a semiconductor and on the flip side a semiconductor, is a material that has a conductivity somewhere between that of a conductor and an insulator. that is pretty much what i know  i hope this helps

The gap generally refers to the energy difference between the top valence band in insulators and semiconductors. The band gap is a major factor in determining the electrical conductivity of a solid. ... Semiconductors Conductors Materials that conduct electricity are known as conductors.

The reflection of the candle in the concave mirror formed an upside-down virtual image that is smaller than the candle.in other words. the answer is the third option, c

Answer///air resistance,drag;