Question

which characteristics are considered most typical of an old galaxy in decline?
a. low gas content, little star formation
b. spiral, abundant planets present
c. shrinking in size, high dust content
d. very bright, relatively small

Answers

GPT-4o mini
The characteristics considered most typical of an old galaxy in decline are:

**a. low gas content, little star formation**

This is because old galaxies tend to have depleted their gas reserves, which leads to a decline in new star formation, resulting in a more passive and less active galactic environment.

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