when lightning strikes it opens up a hole in the air called channel then after lightning strike air collapsed back in creating soundwaves called thunder
Thunder
lighting comes before thunder because it is the heat of lighting that causes thunder
the large obstacles and tall buildings etc causes the reverberation of thunder as it reflects sound and also causes multiple reverberation.
condensation creates thunder clouds.
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Lightning occurs very slightly sooner, and causes thunder.
Did you mean 'what causes thunder'. I will say the answer for that question. It is actually the lightning that causes thunder. Lightning causes thunder by super-heating a small area of air which then causes an electric current. According to my knowledge, this is the answer for your question.
The electricity in the clouds.
static electricity generated in cumulonimbus clouds
Thunder is not chemical energy. It is a natural phenomenon that occurs as a result of the rapid expansion and contraction of air surrounding a lightning strike. This causes vibrations in the air, which we perceive as the sound of thunder.
Lightning causes thunder. Lightning is a massive electrical discharge that you see as a bolt or flash of light. Thunder is the sound caused when the lightning superheats the air, creating a shockwave.