Question

Which statement is true about the current understanding of the composition of the universe.

A) Roughly 70% of the mass of the universe is normal "everyday" matter.

B) All energy in the universe is bound up as everyday "normal" matter.

C) Roughly 23% of the mass of the universe is normal "everyday" matter

D) Roughly 5% of the mass of the universe is normal "everyday" matter.

Answer 1

C is the correct answer. The universe is always changing with new stars and more carbon dioxide. Any around 23% isnt new