Answer
Floods can occur in different ways, and four main types of floods are distinguished. Riverine floods happen when rivers overflow their banks due to heavy rainfall or snowmelt. Coastal floods occur along coastlines due to high tides, storm surges, or hurricanes pushing seawater onto land. Flash floods are rapid-onset floods resulting from intense rainfall or sudden releases of water from dams. Urban floods, on the other hand, are influenced by urban development, as impervious surfaces and inadequate stormwater management lead to increased surface runoff in cities, overwhelming drainage systems and causing flooding.
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