Correct Answer:
Option B - In the universe the most common element is Hydrogen followed by Helium. About 70% of the Universe remains hydrogen. About 28% is helium, with 25% formed in the Big Bang and 3% from stellar fusion.
B. In the universe the most common element is Hydrogen followed by Helium. About 70% of the Universe remains hydrogen. About 28% is helium, with 25% formed in the Big Bang and 3% from stellar fusion.