The Big Bang Theory Is Supported by Two Major Lines

question 35

Multiple Choice

The Big Bang theory is supported by two major lines of evidence that alternative models have not successfully explained. What are they?

• A)(1)The theory predicts the existence of and the specific characteristics of the observed cosmic microwave background; (2)the theory correctly predicts the observed overall chemical composition of the universe.
• B)(1)The theory correctly predicts that the universe should be expanding; (2)the theory predicts the existence of and the specific characteristics of the observed cosmic microwave background.
• C)(1)The theory predicts the episode of inflation that we think occurred in the early universe; (2)the theory predicts the existence of large quantities of dark matter.
• D)(1)The theory correctly predicts that the universe should be expanding; (2)the theory correctly predicts the observed ratio of spiral to elliptical galaxies in the universe.

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Definitions:

Transitional Period

A phase of change from one state or condition to another, often characterized by uncertainty and development.

Replacement Level Fertility

The fertility rate at which a population exactly replaces itself from one generation to the next, without migration, typically around 2.1 children per woman.

Total Fertility Rate

An estimate of the average number of children a woman will have during her reproductive years, typically used as an indicator of population growth.

Refined Birth Rate

A statistical measure of the number of live births in a year, typically expressed per 1000 people in the population, adjusted for specific criteria or demographics.