The Appalachian Mountains Formed as a Result of ________

question 30

Multiple Choice

The Appalachian Mountains formed as a result of ________.

• A)the break-up of Pangaea
• B)the collision of North America and Africa
• C)the collision of North America and Europe
• D)the collision of Greenland and Norway
• E)the initial formation of Pangaea

---

Definitions:

Conductive Materials

Substances that permit the flow of electric current through them due to the presence of free charge carriers like electrons or ions.

Through-beam Photoelectric Sensor

A sensor that detects the presence of an object when the object interrupts a beam of light between transmitter and receiver components.

Light Beam

A narrow projection of photons, typically visible to the human eye, used in various applications from communication to measurement.

Latching Relays

Electromechanical switches that maintain their position (on or off) after being actuated, until they receive another specific actuation signal.