Question

protection against flood and give me pictures for my project?​

Answer 1

Answer:

Find flood prevention stock images in HD and millions of other royalty-free stock photos, illustrations and vectors in the Shutterstock ...

Answer 2

Answer:

The National Weather Service flood definition states that "flooding is an overflowing of water onto land that is normally dry." Flooding happens when rain falls faster than the ground can absorb or natural channels can carry water away.

Types of Flood Events

Flash Floods

The leading cause of weather-related deaths in the United States, flash floods happen within six hours of the rain event. Most flash floods occur due to heavy rains from slow-moving thunderstorms, repeated thunderstorms or the heavy rains of hurricanes or tropical storms.

River Floods

Seasonal rains, snow melt or stalled storms may lead to river floods. River floods occur as part of the natural seasonal cycle and may last a week or more.

Coastal Floods

Floods along coastlines happen when storms or winds push the ocean farther than the normal tide lines. Extreme low-pressure systems and intense on-shore winds, especially from hurricanes and tropical storms, cause coastal flooding. Seismic sea waves, better known as tsunamis or tidal waves, triggered by underwater earthquakes or volcanic eruptions also cause coastal flooding.

Urban Floods

As urban areas grow, so does the threat of flooding. Pavement and buildings prevent infiltration and increase runoff. Streets can become running rivers and low areas like underpasses and basements may fill with water.

Ice Dams and Log Jams

Sometimes ice or other natural materials like trees and shrubs temporarily block runoff. When these materials hold back runoff, the water builds pressure, behaving like a flash flood if the temporary dam breaks suddenly.

Other Flood Events

Severe flooding may occur when levees or dams break or when water must be released from impoundments to relieve pressure. Melting of snow by magma movement may also cause sudden flood events, as with the 1980 eruption of Mt. St. Helens.

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