Which element is the most abundant in the universe?
A
Hydrogen
B
Helium
C
Carbon
D
Oxygen
Correct Answer: Option A — Hydrogen
Explanation:
Hydrogen is the most abundant element in the universe making up approximately 75 percent of all normal matter by mass and is the primary fue...
Hydrogen is the most abundant element in the universe making up approximately 75 percent of all normal matter by mass and is the primary fuel for nuclear fusion in stars.