Measuring the amount of deuterium in the universe allows us to set a limit on
A)the total amount of mass in the universe.
B)the density of ordinary (baryonic)matter in the universe.
C)the acceleration of the universe.
D)the current age of the universe.

Question

Quizplus · Accepted Answer

Measuring the amount of deuterium in the universe allows us to set a limit on the density of ordinary (baryonic) matter in the universe, as deuterium is primarily created in the early universe through nucleosynthesis, and the amount present now depends on the density of ordinary matter at that time. It does not necessarily provide information on the total amount of mass in the universe, the acceleration of the universe, or the current age of the universe.

Measuring the Amount of Deuterium in the Universe Allows Us