Vibration During an Earthquake

question 1

Multiple Choice

Vibration during an earthquake

• A) always results in the development of a cliff at Earth's surface due to movement on a fault.
• B) creates large open gashes in the Earth, which can swallow automobiles.
• C) causes wet clay to become firmer; thus, when siting a house in an earthquake-prone region, it is best to build it over a landfill containing wet clay.
• D) is usually most intense when the surface waves arrive.

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Definitions:

Choroid

A layer of the eye between the retina and the sclera, rich in blood vessels, providing oxygen and nutrients to the inner parts of the eye.

Lens

A piece of transparent material, typically glass or plastic, that refracts or focuses light rays, used in glasses and cameras.

Vestibule

The area in the inner ear between the semicircular canals and the cochlea.

Semicircular Canals

Structures in the inner ear that help a person maintain balance; each of the three canals is positioned at right angles to the other two.