alleryWhy are positive lightning strikes called bolts from the blue?
AThey only occur at midnight
BThey give no warning to observers
CThey are always coloured blue
DThey only strike the sea
Answer & Solution
Correct answer: B. They give no warning to observers
1. Positive lightning can travel long distances through clear air.
2. So it can strike far from the storm with no warning.
3. The name does not refer to colour or time.
_Source: Wikipedia, Lightning, Positive and negative lightning_
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