Imagine that it turns out that dark matter (not dark energy) is ...

[Arii_bell]

Imagine that it turns out that dark matter (not dark energy) is made up of an unstable form of matter that decays into photons or other forms of energy about 50 billion years from now.
 
  Based on current understanding, how would that affect the universe at that time? A) Stars would cease to exist when the dark matter is gone.
  B) Planetary systems would expand and disperse.
  C) The galaxies in clusters would begin to fly apart.
  D) The universe would cease its expansion.

Question 2

Which of the following types of galaxies are reddest in color?
 
  A) spirals
  B) ellipticals
  C) lenticulars
  D) irregulars

[jamesnevil303]

Answer to Question 1

C

Answer to Question 2

B

[Arii_bell]

TY

[jamesnevil303]

You're welcome