Question

28 according to calculations made by the big bang theory, ______ of the universe is composed of helium. none 45% 90% 25% skip 27/47 complete

Explanation:

The Big - Bang theory calculations suggest that approximately 25% of the universe's baryonic matter is composed of helium. This is a well - established result from cosmological models based on the Big Bang theory.

Answer:

D. 25%