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What is the Sahel and what are the problems currently facing this African region?
Dimmer Switch
A control device used to adjust the brightness of lights by regulating the voltage or current flowing to them.
Relays
Electrically operated switches that allow a low-power electrical circuit to control one or more higher power circuits, widely used in various types of electronic and electrical applications.
Clockwise
A circular motion that proceeds in the same direction as a clock's hands, from the top to the right, then down and back to the top.
Counterclockwise
A direction opposite to the way the hands move around a clock, often used to describe the rotation or movement of objects.
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