In the Acsampanying Figure, the Small Box or Bar to the Left

question 8

Multiple Choice

In the acsampanying figure, the small box or bar to the left of each field is called the ____.

• A) row selector
• B) field selector
• C) field bar
• D) current field bar

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Definitions:

Pyroclastic Flow

A hot, fast-moving and deadly mixture of gases, ash, and volcanic material produced by explosive eruptions.

Scoria

A highly vesicular, dark colored volcanic rock that may or may not contain crystals, typically formed from the cooling of lava.

Tephra

Volcanic material ejected into the air during an eruption, including ash, bombs, and blocks, which can affect wide areas downwind of a volcano.

Composite Volcano

A type of volcano formed by alternating eruptions of lava and volcanic ash, leading to a layered structure.