Reionization of the Neutral Gas in the Universe Occurred Due

question 47

Multiple Choice

Reionization of the neutral gas in the universe occurred due to the:

• A) decay of dark matter particles
• B) emission of neutrinos by the first stars that formed
• C) release of jets of charged particles from supermassive black holes
• D) radiation from the first stars, supernovae, and black holes that formed
• E) positron and electron annihilations

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Definitions:

Economic Growth

An increase in the capacity of an economy to produce goods and services, compared over a period of time.

Total Output

The total quantity of goods or services produced by a firm or economy in a given period.

Economy

A system of production, distribution, and consumption of goods and services among individuals and businesses in a certain area or country.

Increasing Rate

A situation or condition where there is a rise in the percentage or level of a particular economic variable or indicator over a designated period.