Halo Stars near the Sun Are Distinguished from Disk Stars

question 76

Multiple Choice

Halo stars near the Sun are distinguished from disk stars by what characteristics?

• A) low chemical abundances and low relative velocities
• B) high chemical abundances and high relative velocities
• C) low chemical abundances and high relative velocities
• D) high chemical abundances and low relative velocities
• E) equal chemical abundances and high relative velocities

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Definitions:

Dependent Variable

In an experiment, the variable that is measured to determine how it was affected by the manipulation of the independent variable.

Independent Variable

The variable in an experiment that is manipulated to observe its effect on the dependent variable.

Experimental Group

A group in a scientific study that receives the intervention or treatment being tested.

Control Group

In an experiment, the group that does not receive the treatment or intervention being tested, used as a baseline to compare the effects of the treatment.