What Will Eventually Happen to the Earth When Radioactive Decays

question 79

Multiple Choice

What will eventually happen to the Earth when radioactive decays in its interior cease?

• A) The Earth's core will solidify.
• B) Continental drift will cease.
• C) Earthquakes will cease.
• D) The strength of the Earth's magnetic field will decrease.
• E) All of the above will happen.

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Definitions:

Solenoid

A coil of wire designed to create a magnetic field when an electric current is passed through it, often used to control valves or relays.

Relay

An electrically operated device that mechanically switches electric circuits.

Final Control Element

A device that directly manipulates a process variable to achieve a desired change, such as a valve or a motor.

Proportional Controller

A type of feedback controller that generates an output signal by multiplying the error between a desired setpoint and a measured process variable by a constant.