If its density is less than the critical density, then a universe ________.
A) expands forever
B) will re-collapse
C) contains only antimatter
D) never expands

Name: If its density is less than the critical density, then a universe ________. A) expands forever B) will re-collapse C) contains only antimatter D) never expands
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Question

Quizplus · Accepted Answer

If the density of the universe is less than the critical density, it means there is not enough gravitational force to stop its expansion, so the universe will expand forever.

If Its Density Is Less Than the Critical Density, Then