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
Statement 1 is incorrect: The collision of clouds does not produce thunder. Statement 2 is incorrect: Thunder is the sound produced by the rapid expansion of air due to the intense heat of lightning, not by the separation of clouds. Statement 3 is incorrect: Strong updrafts contribute to cloud formation but do not directly cause thunder. Thus, none of the above produces the thunder. Explanation: Thunder is produced by the rapid expansion of air surrounding a lightning bolt, which creates a shock wave that we hear as sound. None of the options directly describes this mechanism.