What Significant Event Occurred About 500,000 Years After the Start

question 84

Multiple Choice

What significant event occurred about 500,000 years after the start of the Big Bang?

• A) All the galaxies we see today formed.
• B) Electrons and nuclei combined to form neutral atoms.
• C) Quarks became confined.
• D) The formation of helium stopped.

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The current value of an amount to be received in the future; a future amount discounted for compound interest.

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The annual interest rate paid on a bond, expressed as a percentage of the face value.

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