If We "Reverse" Hubble Expansion, We See That the Universe

question 4

Multiple Choice

If we "reverse" Hubble expansion, we see that the universe should have been very dense in the distant past, and so it must have been ________ than it is today, and we should be able to
Observe ________ as a result.

• A) much colder; cosmological redshift
• B) much colder; the cosmic microwave background
• C) much hotter; gravitational redshift
• D) much hotter; the cosmic microwave background
• E) much hotter; black holes

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Definitions:

Global Sea Level

The average height of the Earth's ocean surface, used as a standard in measuring sea level rise or fall globally.

Ice Volume

The total amount of ice contained within glaciers, ice caps, and ice sheets, often measured to monitor the effects of climate change.

Planet

A large celestial body that revolves around a sun in a solar system.

West Antarctica

A region of Antarctica that lies west of the Transantarctic Mountains and is largely covered by the West Antarctic Ice Sheet.