If There Were Mixing Processes in a Main-Sequence Star with a Radiative

question 45

Multiple Choice

If there were mixing processes in a main-sequence star with a radiative zone (there aren't) that churned up all the material in the interior, we would expect that the main-sequence lifetime would be _________ because _________.

• A) shorter, because the star would turn into a giant faster
• B) shorter, because the star would burn hydrogen faster and have a higher luminosity
• C) longer, because helium nuclei have a higher mass than hydrogen nuclei
• D) shorter, because the star would never turn into a red giant
• E) longer, because more hydrogen would be available to burn

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Definitions:

Frictional Unemployment

A form of unemployment that occurs when people are in between jobs or are entering the workforce for the first time, often due to voluntary decisions.

Brain Drain

The emigration of highly skilled or educated individuals from a particular country or region to another, often for better opportunities.

Remittances

Money sent back home by migrants to their family or others in their country of origin, contributing significantly to the economy of the receiving country.

Gross Domestic Product

The overall value, whether in market prices or monetary terms, of all final goods and services produced within the territorial limits of a country in a specific period.