If We Had Detected a Signal from an Advanced Civilization

question 70

Multiple Choice

If we had detected a signal from an advanced civilization in 2013 which was located at a distance of 7 light-years from the Sun, in what year was the signal actually transmitted?

• A) 2007
• B) 2013
• C) 2020
• D) 2006

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Definitions:

Marginal Cost

The change in total cost that arises when the quantity produced is incremented by one unit.

Economic Efficiency

A situation where resources are allocated in a way that maximizes the net benefit to society.

Market Demand Curve

A graphical representation that shows the total quantity of a good or service that all consumers in a market are willing and able to purchase at various prices.

Marginal Benefit

The gain in utility or satisfaction derived from the additional consumption of a unit of a good or service.