Question

a hertzsprung - russel diagram is shown. which stars are best characterized as having high temperatures and low luminosities? red giants white dwarfs supergiants main sequence

Explanation:

On a Hertzsprung - Russell diagram, white dwarfs are located in the lower left region, which corresponds to high temperatures and low luminosities. Red giants have low temperatures and high luminosities. Supergiants have high luminosities. Main - sequence stars have a range of temperatures and luminosities depending on their mass.

Answer:

white dwarfs