Question

1. stars on the upper left end of the main sequence differ from those on the lower right end in what way? stars on the upper left end are less massive. stars on the upper left end are more massive. stars on the upper left end tend to be red in color. stars on the upper left end are near the end of their life cycle. 5. how do white dwarfs compare with supergiants, in terms of temperature and luminosity? white dwarfs are cooler and have higher luminosity than supergiants. white dwarfs are cooler and have lower luminosity than supergiants. white dwarfs are warmer and have higher luminosity than supergiants. white dwarfs are warmer and have lower luminosity than supergiants.

Explanation:

For question 4, on the Hertzsprung - Russell diagram, stars on the upper left of the main sequence are more massive, hotter, and more luminous. For question 5, white dwarfs are small, hot, and have low luminosity compared to supergiants which are large and very luminous.

Answer:

1. Stars on the upper left end are more massive.
2. White dwarfs are warmer and have lower luminosity than supergiants.