The Low-Voltage Brain Waves Produced During Relaxed Wakefulness or the Twilight

question 2

Multiple Choice

The low-voltage brain waves produced during relaxed wakefulness or the twilight stage between waking and sleeping are called __________ waves.

• A)alpha
• B)beta
• C)delta
• D)theta

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Definitions:

Dust Bowl

Great Plains counties where millions of tons of topsoil were blown away from parched farmland in the 1930s; massive migration of farm families followed.

Soil Erosion

The process by which topsoil is worn away through the action of wind, water, or human activity, leading to reduced land fertility.

Crop Fungus

A type of pathogen that attacks plants, leading to diseases that can severely affect agricultural production and food security.

Civilian Conservation Corps

A public work relief program in the United States for unemployed, unmarried men, part of the New Deal, aimed at conservation and development of natural resources.