Question

4.Stars on the upper left end of the main sequence differ from those on the lower right end in what way?

A. Stars on the upper left end are less massive.
B. Stars on the upper left end are more massive.
C. Stars on the upper left end tend to be red in color.
D. Stars on the upper left end are near the end of their life cycle.

Answer 1

The main sequence; a map of stars scaling brightness against temperature. starts that happen to lay on the TOP LEFT are the HIGHER MASS STARS. Cooler stars are seen to lie near the end of the lower right.

B. Stars on the upper left end are more massive.

Answer 2

it is B.