Floods are the world's biggest natural killer.When floods happen,crops are damaged ,houses are washed away,roads are destroyed ,and people are killed.Every year in America kills on average 138 people,most in flash floods.Floods also cause huge economic danage.It is reported that during thye recent years,floods have caused billions in damage each year.
Floods are a serious problem.Worse still they may become more powerful and frequent as global warming becomes more and more serious.Around the world,sea levels will rise and more and more lives be taken by the flood water of our planet.