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Why lightning happens before thundering ?
Most Upvoted Answer
Why lightning happens before thundering ?
This question is the best of all i have seen in edurev,
Answer is easy,
                               Lightning = light in sky
                               thundering = sound of lightning

as light is faster than sound, Lightning comes before then thundering.
Sorry if cannot understand because I wrote this in my words.  :) 
Community Answer
Why lightning happens before thundering ?
The air then contracts rapidly as it cools. This creates an initial CRACK sound, followed by rumbles as the column of air continues to vibrate. If we are watching the sky, we see thelightning before we hear the thunder. That is because light travels much faster than sound waves.
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Why lightning happens before thundering ?
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