After the Big Bang, as the Universe Cooled and Protons

question 15

Multiple Choice

After the Big Bang, as the universe cooled and protons and electrons combined so that the universe became neutral, what important consequence happened?

• A) Protons and neutrons combined to form nuclei such as deuterium and helium.
• B) Neutrinos ceased to interact with normal matter.
• C) Dark matter ceased to interact with normal matter.
• D) Photons began to travel freely through the universe.
• E) Lithium and other light elements were formed by the fusion of hydrogen and helium.

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Definitions:

Reformation

A major movement in the 16th century aimed at reforming certain practices and doctrines of the Catholic Church, leading to the establishment of Protestant churches.

Persecution

The act of harassing, oppressing, or mistreating individuals or groups, especially because of their religious beliefs, political opinions, or other characteristics.

English Immigration

The movement of people from England to another country, often for reasons such as seeking better economic opportunities, religious freedom, or adventure.

Eighteenth Century

The century spanning from 1701 to 1800, characterized by significant changes in politics, philosophy, science, and society.