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The Total Population of the World Is Currently Increasing by About

question 35

Multiple Choice

The total population of the world is currently increasing by about _____ million people per year.


Definitions:

Trade

The exchange of goods or services between entities or individuals.

Premack Principle

The Premack Principle is a psychological principle which suggests that more probable behaviors will reinforce less probable behaviors, meaning that if a person wants to perform a specific activity, they will perform a less desirable activity to get to it.

Decrease

A reduction in quantity, size, or intensity of an object or an action.

Barking

The sound a dog makes, often in response to excitement, threat, or communication needs.

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