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Currently, atmospheric CO2 levels are the highest they have ever been in Earth's 4.6-billion-year history.
Applied Voltage
The electric potential difference applied across a device or component.
Voltage Across
The potential difference in electric potential between two points in an electrical circuit.
Voltage Polarity
The polarity of the voltage at a particular point in a circuit. Generally of concern in direct current circuits.
Current Flow
The flow of electric charge carriers like electrons through a conductor or space.
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