9. Which statement is part of the Big Bang Theory?
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2 points
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 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 need to understand the Big Bang Theory and its key concepts. The Big Bang Theory is a scientific explanation for the origin and evolution of the universe. It suggests that the universe started from a highly dense and hot state, known as a singularity, approximately 13.8 billion years ago.
To determine which statement aligns with the Big Bang Theory, let's evaluate each option:
1. "The universe began as a very high density singularity": This statement accurately describes the initial state proposed by the Big Bang Theory. It suggests that all matter and energy were compressed into an extremely small, dense point before expanding.
2. "Small spiral galaxies become larger elliptical galaxies": This statement is unrelated to the Big Bang Theory. It discusses the evolution of galaxies, which is not directly connected to the initial conditions of the universe.
3. "Dark matter makes up the majority of matter in the galaxy": While dark matter has significant implications in the study of astrophysics and influences the growth of structures in the universe, it is not directly tied to the Big Bang Theory. The Big Bang Theory primarily focuses on the early moments of the universe's existence.
4. "The chemical makeup of the universe has changed dramatically": While changes in the chemical makeup of the universe have occurred over time, this statement is not specifically linked to the Big Bang Theory.
Considering the explanations above, the statement that aligns with the Big Bang Theory is "the universe began as a very high density singularity."