What is the correct fraction of dust to gas in the interstellar medium
A)1/99
B)10/90
C)50/50
D)90/10

Question

Quizplus · Accepted Answer

The correct fraction of dust to gas in the interstellar medium is approximately 1/100 or 1%. This corresponds to choice A) 1/99, which is the closest approximation. In other words, for every 100 particles in the interstellar medium, only one is a dust particle, while the other 99 are gas particles. This ratio can vary slightly, depending on the location and conditions in the interstellar medium, but 1% is a reasonable estimate for the average value.

What Is the Correct Fraction of Dust to Gas in the Interstellar