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:

Comparative Advantage

An economic principle that describes the ability of a country or individual to produce a particular good or service at a lower opportunity cost than others.

Absolute Advantage

The ability of an individual, firm, or country to produce more of a good or service with the same amount of resources as another, making it more efficient.

Piano Tuning

The process of adjusting the tension of the strings in a piano to achieve the desired musical pitch or harmony.

Shoe Polishing

The process of cleaning, conditioning, and applying polish to shoes to enhance their appearance and longevity.