which statement is part of the big bang theory?
the universe began as a very high density singularity
small spiral galaxies become larger elliptical galaxies
dark matter makes up the majority of matter in the galaxy
the chemical makeup of the universe has changed dramatically
the universe began as a very high density singularity
The statement that is part of the Big Bang Theory is: "The universe began as a very high density singularity."
The statement that is part of the Big Bang theory is "the universe began as a very high density singularity."
To arrive at this answer, we can examine each statement and eliminate the ones that do not align with the Big Bang theory.
1. "Small spiral galaxies become larger elliptical galaxies" - This statement does not directly relate to the Big Bang theory, which is focused on the origin and early stages of the universe, rather than the formation of galaxies. Therefore, this statement is not part of the Big Bang theory.
2. "Dark matter makes up the majority of matter in the galaxy" - While this statement provides information about dark matter, it does not directly address the beginning or origin of the universe as described by the Big Bang theory. This statement primarily pertains to the current understanding of galaxy composition, but it is not a fundamental component of the Big Bang theory.
3. "The chemical makeup of the universe has changed dramatically" - This statement also does not specifically refer to the initial stages of the universe and the Big Bang theory. While it is true that the chemical composition of the universe has evolved over time, this statement does not directly align with the central tenets of the Big Bang theory.
Therefore, the statement "the universe began as a very high density singularity" is the one that is part of the Big Bang theory. This proposition is a fundamental premise of the Big Bang theory, suggesting that the entire universe originated from a tiny, extremely dense and hot singularity.