About 80 Percent of the Magma Reaching the Earth's Surface

question 33

True/False

About 80 percent of the magma reaching the Earth's surface is basaltic,with only about 10 percent andesitic and 10 percent rhyolitic.

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Definitions:

Narcolepsy

A chronic sleep disorder characterized by overwhelming daytime drowsiness and sudden attacks of sleep, often associated with a loss of muscle tone triggered by strong emotion.

Hypersomnia

A sleep disorder characterized by excessive sleepiness, leading to prolonged nighttime sleep or excessive daytime napping.

Circadian Rhythm

The natural, internal process that regulates the sleep-wake cycle and repeats roughly every 24 hours.

Infradian

Referring to biological rhythms with cycles that are longer than a day, such as monthly cycles or seasonal behaviors.