Question

speed of onset of flood​

Answer 1

Answer:

Rapid-onset floods occur more quickly, typically developing within hours or days. These types of floods usually occur in smaller watersheds experiencing heavy rainfall, particularly in mountainous and urban areas, and the water usually recedes within a few days.

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Answer 2

Answer:

Flooding can occur slowly as rain continues to fall for many days. This type of flooding, sometimes called a slow-onset flood,