Question

Why there is when lightning in the sky a loud burst of thunder is heard​

Answer 1

Answer:

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Thunder is caused by the rapid expansion of the air surrounding the path of a lightning bolt.

From the clouds to a nearby tree or roof, a lightning bolt takes only a few thousandths of a second to split through the air.

The loud thunder that follows the lightning bolt is commonly said to come from the bolt itself.

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Answer 2

Explanation:

Thunder is caused by the rapid expansion of the air surrounding the path of a lightning bolt. ... The loud thunder that follows the lightning bolt is commonly said to come from the bolt itself.

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