Astronomers Infer That the Universe Is Expanding Because Distant Galaxies

question 13

Multiple Choice

Astronomers infer that the universe is expanding because distant galaxies all appear to .

• A)be moving away from us, with more distant ones moving faster
• B)rotate rapidly
• C)be made mostly of dark matter
• D)be growing in size

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Definitions:

Profit

The financial gain achieved when the revenue generated from business activities exceeds the expenses, costs, and taxes needed to sustain the operation.

Global Warming

The long-term rise in Earth's average surface temperature, largely due to human activities such as burning fossil fuels.

Public Opinion

Refers to the values and attitudes of the adult population as a whole.

Social Construction

The theory that much of what is perceived as reality is shaped by the meanings and definitions that societies attach to phenomena, behavior, and concepts.