One of the Most Important Features That Must Be Explained

question 46

Multiple Choice

One of the most important features that must be explained by models during the formation of the galaxy is the ____.

• A) formation of spiral arms
• B) differences in age and metallicity of stars, especially in the halo
• C) formation of the central supermassive black hole
• D) accumulation of dark matter in the corona
• E) importance of spiral arms to star formation

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Definitions:

Benefits Principle

An economic principle that suggests that people should pay taxes based on the benefits they receive from government services.

Ability-To-Pay Principle

A taxation principle suggesting that taxes should be levied according to an individual or entity's ability to bear the tax burden, often measured by income or wealth.

First-Impression Error

A first-impression error occurs when an interviewer makes a decision too early in the interview process. This error may significantly affect a decision even when subsequent information indicates the first impression may have been wrong.

Correspondent

A journalist or reporter who contributes news or articles from a remote location, often specializing in a particular field or geographic area.