which is not a natural phenomena 1=earthquackes 2=cyclone 3=earthing 4=lighting
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earthing is the correct answer.
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EARTHING IS NOT CONSIDERED TO BE A NATURAL PHENOMENA.
Explanation: Earthing is a building protection system in which all electrical systems are connected to the earth to prevent property and human damage in the case of a malfunction. This is accomplished by inserting conductive rods into the ground near the house's power source.
When handling combustible products or electrostatic-sensitive gadgets, connecting to the ground also reduces static electricity build-up.
The goal of earthing is to reduce the chance of getting an electric shock if you touch something while there is a malfunction. For a variety of reasons, electrical circuits can be connected to the earth (ground).
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