The Pushes on the Oval Window

question 14

Multiple Choice

The pushes on the oval window.

• A)hammer
• B)incus
• C)stapes

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Definitions:

Low-Viscosity

Describes a fluid that easily flows because it has a low resistance to deformation.

Pyroclastic Flow

A fast-moving current of hot gas and volcanic materials that flows down the side of a volcano during an explosive eruption, capable of destroying everything in its path.

Volcanic Breccia

A coarse-grained volcanic rock composed of angular fragments of volcanic material cemented together by finer particles or a mineral matrix.

Dome Collapse

The falling in of the roof of a volcanic dome due to gravitational failure, often leading to pyroclastic flows.