Multiple Choice
Which parameter of the present universe is considered to be critical in determining the ultimate fate of the universe?
A) the amount of mass in black holes in the universe
B) the number of neutrinos in the universe
C) the amount of matter and energy in the universe
D) the number of photons of radiation in the universe
Correct Answer:

Verified
Correct Answer:
Verified
Q68: What is the ratio of cosmic microwave
Q69: In the present universe,the "mass density" of
Q70: The future of the overall universe,in terms
Q71: When the universe was about 2500 years
Q72: In which universe scenario will the present
Q74: When did the universe cool to a
Q76: The photons that enter our microwave detectors
Q77: According to Hubble's law,how old is the
Q78: What is the period of quark confinement?<br>A)
Q204: How does the cosmological constant differ from