Supernova remnants ________.
A) initially expand at thousands of km/s
B) may contain up to 10 solar masses of material ejected from the star
C) are important for mixing material into the interstellar medium
D) All of these choices are correct.

Question

Quizplus · Accepted Answer

Supernova remnants expand rapidly, can contain significant mass from the progenitor star, and play a crucial role in enriching and mixing the interstellar medium with heavy elements.

Supernova Remnants ________