Why do we need levees?

What modern technology do you have to make fire? Did anyone die in Eyjafjallajökull in 2010? What is period when less rain then normal falls in an area? Is fire sprinkler system is under the mechanical category or in plumbing? What class of fixed asset does a fire extinguisher belong? What does unfortunate mean? How many deaths were there when Elie F5 tornado occurred? Can you get smoke alarms with out the need for fire doors? FEMA budget in 1979? What should you do if a tornado comes when you're in your house? What danger can a tornado do? 3 WHAT is the Minimum Density for Automatic-Sprinkler Piping Design in light hazard occupancy? Do most insurance companies cover flood damage? Are floods destructive or a constructive force? Alarm Service? Who does voice for Smokey Bear? Is devastated a negative connotation? What should you do if you inhale the contents from a fire extinguisher and start coughing? What are some adjectives that describe a firefighter? Is a tungsten ring dangerous?