Question

what causes the sound of thunder in the sky

Answer 1

the colliding of to large cloud cause thunder and the colliding produce light and sound

I hope this will help you

Answer 2

Thunder is the sound caused by lightning. Depending on the distance from and nature of the lightning, it can range from a sharp, loud crack to a long, low rumble (brontide). The sudden increase in pressure and temperature from lightning producesrapid expansion of the air surrounding and within a bolt of lightning.