Multiple choice general knowledge science & technology

Hydrogen contributes to about - % of the sun's mass.

  1. 70

  2. 72

  3. 74

  4. 76
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Hydrogen is the most abundant element in the Sun, making up approximately 74% of its mass (about 92% by number of atoms). The Sun's composition is primarily hydrogen (74% by mass, 92% by count), with helium (24% by mass, 8% by count) as the second most abundant element. The remaining 2% consists of heavier elements like oxygen, carbon, neon, and iron.

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