Chile's Major Exports Have Been

question 34

Multiple Choice

Chile's major exports have been

• A) nitrate and zinc.
• B) copper and silver.
• C) gold and silver.
• D) nitrate and copper.

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Definitions:

SCN

Stands for the Suprachiasmatic Nucleus, a small region in the brain that regulates the circadian rhythms, including sleep-wake cycles.

Pineal Gland

A small endocrine gland in the vertebrate brain that produces the hormone melatonin, involved in regulating sleep patterns.

Melatonin

A hormone produced by the pineal gland that regulates sleep and wakefulness cycles.

Hypnagogic Sensations

Experiences occurring at the onset of sleep, often involving visual, auditory, or tactile hallucinations.