The interstellar clouds called molecular clouds are .
A)the cool clouds in which stars form
B)the hot clouds of gas expelled by dying stars
C)the clouds in which elements such as carbon, nitrogen, and oxygen are made
D)clouds that are made mostly of complex molecules such as carbon dioxide and sulfur dioxide

Question

Quizplus · Accepted Answer

Molecular clouds are cool clouds of gas and dust in space that provide the necessary environment for the formation of stars. They are composed mostly of molecular hydrogen and are the densest regions of the interstellar medium.

The Interstellar Clouds Called Molecular Clouds Are