Why Would We Expect the Rate of Expansion of the Universe

question 81

Multiple Choice

Why would we 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:

Toxic Shock Syndrome (TSS)

A rare, life-threatening complication of certain types of bacteria, most commonly the Staphylococcus aureus bacterium.

Menarche

The initial episode of menstrual bleeding in a female, signaling the beginning of fertility.

Amenorrhea

The absence of menstruation, unrelated to aging.

Menorrhagia

Excessive or prolonged menstrual bleeding at regular menstrual cycle intervals, which can be a sign of underlying medical issues.