Question

question 22 of 28 which sentence is generally true of red stars? a. they are the hottest stars. b. they are the oldest stars. c. they are the youngest stars. d. they are the coldest stars.

Explanation:

Stars are classified by color which is related to their surface temperature. Red stars have lower surface - temperatures compared to other colored stars like blue or white stars.

Answer:

D. They are the coldest stars.