Multiple Choice
Which of the following is not a place where astronomers believe interstellar dust grains can form?
A) in the cooling winds of material ejected from red giant stars
B) in the material flowing out of exploded stars, after it has cooled
C) in denser clouds of interstellar matter
D) in HII regions
E) all of the above are places where dust grains regularly form
Section 20.6: Interstellar Matter around the Sun
Correct Answer:
Verified
Correct Answer:
Verified
Q12: Some of the interstellar gas in our
Q13: The term "baryon cycle," as astronomers use
Q14: Why can astronomers not tell from what
Q15: If an astronomer wanted to find some
Q16: Cosmic rays are<br>A) high-energy electro-magnetic radiation<br>B) fast-moving
Q18: Given the presence of dust throughout the
Q19: What happens in the process of fluorescence?<br>A)
Q20: The largest types of clouds found in
Q21: Where is the outer rim of the
Q22: Astronomers have found large quantities of cold,