Where and How Does Metamorphism Occur

question 52

Multiple Choice

Where and how does metamorphism occur?

• A) mainly at low temperatures in the roots of volcanic mountain belts
• B) wherever solid rocks are subjected to new conditions of temperature, pressure, strain, and a change in their constituent fluids
• C) in response to sudden catastrophic geologic changes, mostly in the Precambrian.
• D) beneath the thick accumulations of in sedimentary basins

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Definitions:

Rotor Bars

Metal bars placed in the rotor of an induction motor that conduct current and interact with the magnetic field to create rotation.

Power Factor

A measure of how effectively electrical power is converted into useful work output, with a range from 0 to 1.

Reactance

The opposition that inductors and capacitors present to the flow of alternating current, characterized by its effect on the phase of the current.