What Can Cause a Galactic Fountain

question 28

Multiple Choice

What can cause a galactic fountain?

• A)winds and jets from newly-formed protostars
• B)a supernova occurring in the halo
• C)multiple supernovae occurring together
• D)the combined effect of spiral density waves
• E)molecular clouds falling towards the galactic center

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Definitions:

Marginal Tax Rate

The rate at which the last dollar of a taxpayer's income is taxed, indicating the percentage of additional income that is paid in tax.

Efficiency

The optimal use of resources to achieve the best possible outcome or output with minimal waste.

Equity

Equity refers to fairness or justice in the way people are treated and involves ensuring equal opportunities and rights for all individuals.

Benefits Principle

A theory in taxation where taxes are apportioned according to the benefits received by taxpayers; those who benefit more from government services, pay more taxes.