The composition of the interstellar dust suggests that it is
A) primarily produced by emission nebulae.
B) composed primarily of hydrogen and helium.
C) composed of particles that are a few millimeters in diameter.
D) formed as coronal gas cools.
E) formed primarily in the atmospheres of cool stars.

Question

Quizplus · Accepted Answer

Interstellar dust is primarily formed in the atmospheres of cool stars, where heavier elements are produced and then expelled into space.

The Composition of the Interstellar Dust Suggests That It Is