Collisions Between Galaxies

question 52

Multiple Choice

Collisions between galaxies

• A) cause large numbers of stars to collide and explode.
• B) are the best explanation for gamma- ray burst events.
• C) cause the gas and dust clouds to collide, leading to rapid star formation.
• D) are much rarer than collisions between stars.
• E) can turn elliptical galaxies into spirals.

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Definitions:

Substitution Effect

A response to price changes in which consumers replace more expensive items with less costly alternatives.

Income Effect

The change in an individual's consumption patterns resulting from a change in their real income.

Labor Supply Curve

A graphical representation showing the relationship between the wage rate and the quantity of labor that workers are willing to supply.

Substitution Effect

The change in consumption patterns due to a change in relative prices, leading consumers to replace more expensive items with cheaper alternatives.