The acceleration (or deceleration) of the expansion of the universe is determined by
A) the standard matter, baryons and leptons.
B) the dark matter in the universe.
C) the dark energy in the universe.
D) all of the above.
E) only (b) and (c) above.

Question

Quizplus · Accepted Answer

The acceleration of the universe's expansion is influenced by all the components mentioned: standard matter (baryons and leptons), dark matter, and dark energy. Each plays a role in the universe's dynamics, with dark energy being the most significant contributor to the acceleration observed.

The Acceleration (Or Deceleration) of the Expansion of the Universe