During a thunderstorm, the thunder in the skies is produced by the :1. Meeting of cumulonimbus clouds in the sky.2. Lightning that separates the nimbus clouds.3. Violent upward movement of air and water particles.Select the correct answer using the codes given below :
✓ Correct answer: d) None of the above
ExplanationThunder is caused by lightning.When a lightning bolt travels through the air, it heats the air to an extremely high tem- perature (up to 30,000 Kelvin).This sudden heating causes the air to expand explosively, creating a shockwave that we hear as thunder.It is not caused by the meeting of clouds, the separation of clouds, or the upward movement of air and water particles.Statement 1 is incorrect : Thunder is not caused by the meet- ing of clouds.Cumulonimbus clouds are indeed responsible for thunderstorms, but thunder itself results from the rapid heating and expansion of air due to lightning, not the merging of clouds.Statement 2 is incorrect : Lightning occurs due to electrical dis- charge within or between clouds and the ground.Thunder re- sults from the sudden expansion of air due to the intense heat of lightning, not from nimbus cloud separation.Statement 3 is incorrect : While violent air and water particle movements occur within cumulonimbus clouds during a thun- derstorm, they do not directly produce thunder.The updrafts and downdrafts determine storm intensity but a
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