Question

The theory says that the big bang produced the chemical elements hydrogen and helium. What evidence supports this? You find an abundance of both hydrogen and helium in all matter.

A. You find an abundance of both hydrogen and helium in all matter.

B. The composition of stars is mostly hydrogen.

C. Astronomers found primordial gases with the expected ratio of helium to hydrogen.

D. Primordial hydrogen gas was found and there is an abundance of both of these elements.

Answer 1

Answer:

Astronomers found primordial gases with the expected ratio of helium to hydrogen.

Answer 2

Answer:

The correct answer is option C. "Astronomers found primordial gases with the expected ratio of helium to hydrogen".

Explanation:

Primordial gas clouds are masses of gas that astronomers have dated its formation right after the Big Bang created the universe. Since astronomers found that these primordial gases have the expected ratio of helium to hydrogen, the theory that the Big Bang produced these two chemical elements is supported. Hydrogen and helium are the two the lightest elements in the universe, once the clouds condensed to form the first stars, the gravity forces allowed the formation of all the other elements we know.