The Explanation of Geological and Biological Change as the Result

question 18

Multiple Choice

The explanation of geological and biological change as the result of a series of global floods,earthquakes,volcanoes,and so on,is known as

• A)uniformitarianism.
• B)evolution.
• C)stratigraphy.
• D)catastrophism.

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Definitions:

Magnetic Field

A vector field surrounding magnets, electric currents, and changing electric fields, where magnetic forces are exerted.

Armature

The rotating part of an electric machine (motor or generator) within which a current is induced by a magnetic field.

Brushless DC

A type of direct current electric motor (DC motor) that uses an electronic controller to switch the current in the motor, eliminating the need for brushes.

Wound Armature

A component in electrical machines consisting of coils wound around an iron core, which rotates in a magnetic field to induce electromotive force.