GEOLOGY

Detailed explanation-1: -A flood happens when water overflows or soaks land that is normally dry.

Detailed explanation-2: -If there is a flood, a large amount of water covers an area which is usually dry.

Detailed explanation-3: -Fluvial floods (river floods) A fluvial, or river flood, occurs when the water level in a river, lake or stream rises and overflows onto the neighboring land. The water level rise of the river could be due to excessive rain or snowmelt.

Detailed explanation-4: -Inundation is the total water level that occurs on normally dry ground as a result of the storm tide, and is expressed in terms of height of water, in feet, above ground level. Inundation provides the most clearly and commonly understood method for communicating storm surge-driven coastal flooding.

Detailed explanation-5: -There are three types of floods-flash floods, river floods, and coastal floods. When a flood occurs within six hours of heavy rainfall, it is called a flash flood. When the melting of snow or precipitation over a large catchment causes rivers to overflow, it is called a river flood.