Why Would Cosmologists Expect the Rate of Expansion of the Universe

question 72

Multiple Choice

Why would cosmologists expect the rate of expansion of the universe to be slowing down?

• A) The gravitational pull of all objects in the universe on each other would lead to slowdown.
• B) All expansions after explosions naturally slow down with time.
• C) Galaxies feel a kind of friction as they move through space, which slows them down.
• D) The greater the distance between two objects (such as galaxies or superclusters), the harder it is to push them farther apart.

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Definitions:

Fat Tissue

Biological tissue that stores energy in the form of lipids, provides insulation, and serves as padding and protection for body organs.

Settling Point

A theory in biology and physiology suggesting that body weight is regulated around a genetically predetermined 'settle point'.

Weight-Loss Diets

Eating plans often designed to reduce calorie intake, resulting in body weight loss.

Calorie Maintenance

The balance of calories consumed through eating and drinking with calories burned through physical activity, which is crucial for maintaining current body weight.