In Developed Countries,the Most Recent Increases in Agricultural Productivity Have

question 12

Multiple Choice

In developed countries,the most recent increases in agricultural productivity have come from

• A)irrigation in arid areas.
• B)building up soil reserves on farms worldwide.
• C)clearing rainforests.
• D)an increase on the land being used for agriculture,especially in developed countries.
• E)new crop varieties and intensified farming.

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Definitions:

Independent Variable

A variable presumed to influence or determine the dependent variable in an experiment or study.

Coefficient of Determination

A statistical measure that determines the proportion of variance in the dependent variable that can be predicted from the independent variable(s).

Quadratic Model

A statistical or mathematical model in which the relationship between the independent variable and the dependent variable is represented by a second-degree polynomial or parabolic function.

Quadratic Relationship

A type of relationship between two variables where the relationship can be described by a second-degree polynomial or equation.