Choose the correct statements from the following list. (Give ALL
correct answers, i.e., B, AC, BCD...)
A) A major difference between dark matter and dark energy is that
one causes the univserse's expansion to slow down, the other to
make it expand faster.
B) The critical density is the density needed to cause the Big
Bang.
C) Assuming no dark energy, if the matter density of the universe
is less than critical, the universe is open.
D) The inflationary model...