Examlex
Which sentence is correctly punctuated?
Lightning
An electrostatic discharge during a thunderstorm that results in a bright flash of electricity traveling between clouds or between a cloud and the ground.
Industrial Smog
Air pollution resulting from industrial activities, characterized by the presence of smoke and harmful gases, particularly sulfur dioxide and particulate matter.
Hydroelectricity
The generation of electricity using the flow of water through turbines in dams.
Coal
Coal is a combustible black or brownish-black sedimentary rock used primarily as an energy source or in industrial processes.
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