Question

the theory of how the universe started is called the:
○ cosmic background
○ evolution
○ big bang
○ nutrino

Explanation:

• "Cosmic Background" usually refers to cosmic microwave background radiation, which is evidence for the Big Bang, not the theory of the universe's start.
• "Evolution" is about the development of species over time, not the universe's origin.
• "Big Bang" is the widely accepted theory explaining the origin and early development of the universe.
• "Nutrino" (likely a misspelling of "neutrino") is a subatomic particle, not a theory of the universe's start.

Answer:

C. Big Bang