The most abundant form of matter in the universe appears to be:
A) water molecules.
B) planets and planet-like bodies.
C) dust and debris.
D) hydrogen.

Question

Quizplus · Accepted Answer

Hydrogen is the most abundant element in the universe, comprising about 75% of its elemental mass. This is because hydrogen was the first and simplest element to form after the Big Bang, and because it's continuously being formed in stars through nuclear fusion.

The Most Abundant Form of Matter in the Universe Appears