The Silica Content of Magma Greatly Affects Its Viscosity

question 67

Multiple Choice

The silica content of magma greatly affects its viscosity.Magma with a high silica content has a

• A)high viscosity and flows quickly.
• B)high viscosity and flows slowly.
• C)low viscosity and flows quickly.
• D)low viscosity and flows slowly.

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Definitions:

Extinction

In psychology, the gradual weakening and eventual disappearance of a conditioned response; in biology, the dying out of a species.

Vocalizations

The sounds produced by the vocal cords, including speech, cries, or other vocal output.

Infant

A young child in the earliest period of life, especially from birth to one year old.

Classical Conditioning

A training method where two different stimuli are paired repeatedly, leading to a response initially triggered by the second stimulus being ultimately triggered by the first stimulus alone.