Which types of baryonic matter are most abundant in the universe? Select the two correct answers.(1 point)
Responses
nitrogen
nitrogen
helium
helium
hydrogen
hydrogen
oxygen
oxygen
carbon
helium and hydrogen
The correct answers are hydrogen and helium. To determine this, we need to know the composition of the universe. Scientists have found that approximately 75% of the observable mass in the universe is hydrogen, while about 25% is helium. These two elements are the most abundant types of baryonic matter in the universe.
The correct answers are:
1. Hydrogen
2. Helium