Question

<br />Tick (✓) the odd-one out giving<br />Glass rod, Cotton cloth, Positive charge on glass rod, Silk cloth<br />2. Lightning, Lightning conductor, Electroscope,<br />3. Earthquake, Tsunami, Richter scale, Epicentre, Focal depth<br />4. Hypocentre, Volcanic eruption, Earthquake, Seismic waves.<br />rue or False Type Questions:<br />other charged object.<br />​

Answer 1

i think 3........

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