How Is the Age of the Galaxy Determined

question 112

Multiple Choice

How is the age of the galaxy determined

• A)measuring the metallicity of Population II stars
• B)finding the turnoff point in the H-R diagram of globular clusters
• C)from the motion of stars in the galactic halo
• D)counting the number of open clusters in the spiral arms

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Definitions:

Two Jobs

Working for two distinct employers at the same time, often to increase income through additional work.

Wages

Payments made to employees for services rendered, typically calculated on an hourly, daily, or piecework basis, and subject to income tax.

Self-Employment Tax

A tax primarily for individuals who work for themselves, covering Social Security and Medicare taxes.

Sole Proprietor

An individual who owns and operates a business alone, assuming complete responsibility for all assets and liabilities.