If Ωo is less than one, then:
A)the universe is closed, and must recycle.
B)the universe will expand forever.
C)no matter could have existed.
D)only dark energy exists in the universe.
E)there is more matter than energy in the universe.

Question

Quizplus · Accepted Answer

If Ωo is less than one, it means that the actual density of the universe is less than the critical density needed to stop its expansion. Therefore, the universe will continue to expand forever. If Ωo is less than one, it indicates that the universe is open and will continue to expand forever. This means that the gravitational force of matter in the universe is not strong enough to eventually halt the expansion, leading to a "Big Freeze" scenario.

If ΩO Is Less Than One, Then