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The Creation of the New Department of Homeland Security in 2002

question 66

Multiple Choice

The creation of the new Department of Homeland Security in 2002 is an example of


Definitions:

Sound Waves

Sounds that move through the air or a different substance and become audible upon arriving at the ear of a human or an animal.

Vibration

A mechanical phenomenon whereby oscillations occur about an equilibrium point, commonly observed in objects that produce sound.

Molecules

Groups of atoms bonded together, representing the smallest fundamental units of a chemical compound that can take part in a chemical reaction.

Auditory Canal

Short tunnel that runs from the pinna to the eardrum.

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