Question

which types of baryonic matter are most abundant in the universe? select the two correct answers. (1 point)
nitrogen
oxygen
helium
hydrogen
carbon

Explanation:

Baryonic matter consists of protons, neutrons, and electrons. Hydrogen is the most abundant element in the universe, making up about 75% of its baryonic mass. Helium is the second - most abundant, accounting for about 24% of the baryonic mass. Other elements like nitrogen, oxygen, and carbon are much less abundant in the overall universe compared to hydrogen and helium.

Answer:

helium, hydrogen