When Helium Fusion Begins in the Core of a Red

question 20

Multiple Choice

When helium fusion begins in the core of a red giant star, the situation quickly gets out of control because electron-degeneracy pressure does not respond to changes in

• A) luminosity.
• B) density.
• C) gravity.
• D) temperature.
• E) magnetic field strength.

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Definitions:

PQ Increase

A rise in the product of price level and quantity of goods and services produced, indicating growth in the value of economic output.

Classical Economist

An economist adhering to a school of thought originating in the late 18th and early 19th centuries, focusing on free markets, the role of self-interest, and the importance of limiting government intervention in the economy.

Interest Rates

A lender's charge to a borrower, expressed as a proportion of the principal, for accessing assets.

Supply and Demand

Economic model of price determination in a market, stating that the price of a good or service varies directly with its demand and inversely with its supply.