The Economic Geography of West Africa Began a Slow,long-Term Shift

question 36

Multiple Choice

The economic geography of West Africa began a slow,long-term shift away from ____ and toward the coast.

• A)North Africa
• B)sub-Saharan areas
• C)the Niger River
• D)the interior
• E)the east

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Definitions:

Absolute Threshold

The lowest level of a stimulus that can be perceived half the time by an individual.

Hearing Test

A procedure used to evaluate a person's ability to hear various sounds, frequencies, and volumes, typically conducted by an audiologist.

Activation of Receptors

The process by which receptors on the cell surface or inside the cell are engaged by specific stimuli, leading to a cellular response.

Sensation

The process by which sensory receptors and the nervous system receive and represent stimulus energies from the environment.