Multiple Choice
What distinguishes flash floods from downstream floods?
A) Flash floods are caused by thunderstorms, downstream floods do not involve lightning and thunder.
B) Flash floods occur in the upper part of a drainage basin, downstream floods occur in the lower part of a drainage basin.
C) Flash floods don't really involve any danger, downstream floods are extremely dangerous.
D) Flash floods are only common with large rivers, downstream floods generally involve much smaller rivers.
Correct Answer:

Verified
Correct Answer:
Verified
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