Most interstellar dust grains are produced in A) the Big Bang. ...

[c0205847]

Most interstellar dust grains are produced in
 
  A) the Big Bang.
  B) the interstellar medium.
  C) the atmospheres of red giant stars.
  D) supernova explosions.
  E) the solar nebula.

Question 2

Current techniques can measure stellar motion to less than
 
  A) walking speed.
  B) running speed.
  C) freeway speed.
  D) cruising speed of an airplane.
  E) orbital speed of Jupiter.

[ong527]

Answer to Question 1

C

Answer to Question 2

A

[c0205847]

Thanks for the timely response, appreciate it

[Dnite]

Great answer, keep it coming