A flood can form if it rains to much and overflows lakes or if there is a hurricane or if there is a tornado or if there is a earthquake. when it rains lakes will fill up and then it will cause a flash flood or a real big flood but a flash flood is a warning that there might be a flood or there will be a small flood.
how it affects the enviroment
it kills animals and human beans and destroys the environment and man mad machinery
in 1937 a flood in jeffersonville killed 435 peps many homes were destroyed. the republican river overflowed 77 years ago killing 131 peps and destroyed 1200 homes
impact on human life
it took away homes and it do much damage so peps dont need to do as much work. We prep for these storms by listening to the news or the radio because those stuff will tell us when its gonna happen why and what is going to happen. And that also effects human life because when were notified it will save alot of lives. But then in poor countries were they cant get notified it will kill people and that will make the population go down it will also destroy stuff and that will cause people to donate and people will fix stuff so they can live there again.