The interstellar ________ absorbs light from stars and makes them ...

[sarasara]

The interstellar ________ absorbs light from stars and makes them appear fainter and redder than they otherwise would appear.
 
  Fill in the blank(s) with correct word

Question 2

Spectral lines are often referred to as the stars' fingerprints because:
 
  A) fingerprints also consist of individual lines that make a pattern.
  B) both are unique to their source.
  C) both can be easily categorized.
  D) both are characteristic of the individual that produced them.
  E) All of these are correct.

[kkenney]

Answer to Question 1

dust

Answer to Question 2

E

[sarasara]

Great answer, keep it coming

[mohan]

Thanks for the timely response, appreciate it