The Desertification of the Sahel Is Caused By

question 33

Multiple Choice

The desertification of the Sahel is caused by:

• A) overgrazing.
• B) overcultivation.
• C) periodic droughts.
• D) soil erosion.
• E) All of these choices are correct

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Definitions:

Standard Deviation

A statistical measure that quantifies the variation or dispersion of a set of data points relative to its mean.

Mean

A statistical measure representing the average of a set of numbers, calculated by dividing the sum of all values by the number of values.

Performance Levels

Measures or ratings used to evaluate the effectiveness, quality, or achievements of an individual or organization in specific tasks or goals.

Bar Graph

A visual representation of data using rectangular bars of lengths proportional to the values they represent, which can be oriented horizontally or vertically.