Globular clusters are composed of
A) very young,metal-poor stars.
B) very old,metal-poor stars.
C) very young,metal-rich stars.
D) very old,metal-rich stars.

Question

Quizplus · Accepted Answer

Globular clusters are believed to be some of the oldest objects in the universe, containing stars that are more than 10 billion years old. They are also metal-poor, meaning they contain very low abundances of elements heavier than helium. This is because they formed before there were many supernova explosions to generate heavier elements. Therefore, the best choice is option B, which describes very old, metal-poor stars.

Globular Clusters Are Composed of