we receive heat and light from the sun, but don't hear the sound of explosions occurring on it. why?

Because sound waves can not travel through vacuum therefore we do not listen sound of explosion.

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we don't hear the sound of explosion occurring on sun because the sun is in the space space is a vacum and sound being a mechanical wave requires a medium to travel. have'nt you read about the bell jar experiment it will surely solve your confusion.
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