Which correctly relate dark matter and dark energy to the big bang theory? Select the two correct answers.

Question

a. Dark energy is the source of 25% of the mass of the universe.
b. Because of dark matter, gravitational interactions cause galaxies to develop.
c. Without dark energy, structures in the early universe would never have developed.
d. Through dark energy, the universe is expanding at a faster and faster rate.

Answer 1

b. Because of dark matter, gravitational interactions cause galaxies to develop.
d. Through dark energy, the universe is expanding at a faster and faster rate.