Which of the following is not a trigger action for a thunderstorm to form?
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Solar heating
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Orographic lifting
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Frontal lifting
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Duststorm
D
Correct answer
Explanation
Thunderstorm formation requires vertical lifting mechanisms: solar heating (thermal), orographic lifting (terrain), and frontal lifting (weather fronts). Dust storms involve horizontal particle movement but do not provide the upward air motion needed for convective storm development.