How Would You Expect a Star That Formed Recently in the Disk

question 118

Multiple Choice

How would you expect a star that formed recently in the disk of the galaxy to differ from one that formed early in the history of the disk?

• A)It should be higher in mass.
• B)It should have a higher fraction of elements heavier than hydrogen and helium.
• C)It should orbit the galactic center at a much higher rate of speed.
• D)It should be much brighter.
• E)All of the above would be expected.

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Definitions:

Skepticism

The attitude of doubting the validity of something until solid evidence is presented.

Scientific Research

A systematic and organized attempt to investigate specific questions and propose explanations based on gathered evidence.

Replication

The process of repeating a research study or experiment to confirm its results.

Experiment

A methodical investigation conducted to test a hypothesis by manipulating and controlling certain variables to observe the effect on other variables.