Question

what do we call stars with high surface temperature and low luminosity? red supergiants red giants blue giants main sequence red dwarfs white dwarfs

Explanation:

Red supergiants, red giants, and red dwarfs are red - indicating lower surface temperatures. Blue giants have high luminosity. Main - sequence stars have a range of temperatures and luminosities. White dwarfs are hot (high surface temperature) and have low luminosity due to their small size.

Answer:

white dwarfs