Discussion
Consider the following statements about volcanic lightning.
1. Frictional charging of ash contributes near the vent.
2. Ice charging can operate higher in a tall plume.
3. It requires no particles in the plume at all.
Answer: B
The first two are correct and describe the two regimes. The third is nonsensical, since charge separation requires particles to collide and separate in the first place. No particles means no charge separation of any kind.
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