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Physics 11 Online
OpenStudy (anonymous):

all of the following involve waves of electromagnetic energy except... 1.the rumble of thunder during a storm 2.watching videos on a computer screen 3.radios receiving signals through air 4.sunlight shining on a plant leaf

OpenStudy (flying_dutchman):

1. The rumble of thunder during a storm That's a sound wave, not an electromagnetic wave.

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