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If lightning is caused by electricity in the air during a thunderstorm, what causes thunder?

User KingTim
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2 Answers

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The rapid expansion of the air surrounding the path of a lightning bolt
User Nightloewe
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7 votes

Answer:

Since light travels faster than sound, the lightning arrives before the thunder. But thunder is the sound of lightning shooting through the sky in a thunderstorm.

Step-by-step explanation:

User Syed Rafay
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