The critical density of the universe is the
A. average density the universe would need for gravity to someday halt the current expansion if dark energy did not exist.
B. actual average density of the universe.
C. density of dark matter in the universe.
D. density of water.
Answer:A
The critical density of the universe is the
A. average density the universe would need for gravity to someday halt the current expansion if dark energy did not exist. B. actual average density of the universe. C. density of dark matter in the universe. D. density of water.