The Approximate Number of Humans on Earth in 2012 Is

question 21

True/False

The approximate number of humans on Earth in 2012 is 7 billion.

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Definitions:

External Cost

Costs of an economic activity that are not borne by the parties involved but are instead imposed on others or society at large.

Private Value

The value of a good or service to an individual or firm for personal use, as opposed to its value to society or the economy at large.

Socially Optimal

A situation or outcome that is best from the society's point of view, where social welfare, including benefits and costs, is maximized.

Economic Well-being

A broad measure of the prosperity and quality of life of individuals or societies, encompassing material, social, and environmental dimensions.