Was it a local or global flood?

Have you ever thought of how the dinosaurs may have become extinct whether it was a huge comet that wiped out the earth, or an ice age that killed the population, or was it the flood. Some people have very different views of what happened to the earth and all of the being that lived here. There is one theory that has particularly caught my eye on how the world might have been wiped out once. The Global Flood that has been talked about for centuries through history text books, religion classes, and even in evolutionary schools who denounce God have taught of a global flood except they leave out the part of God instructing Noah to build ark. With all religion a side for one minute let us just take a look at some possible logical reasons that a global flood might have been a very probable cause of the earth’s destruction at one time. Let’s begin with the rain falling from the skies; it had fallen for forty days straight, uninterrupted, the likeliness of any storm staying around an area for forty days has never been done before so it could not have been a localized flood, and it would have wiped out the whole earth.  The waters remained for over a year again a local flood would not have stayed around for that long; it would have evaporated or flowed to some other parts of the countries or world. There are a ton of logical reasons to present for a global flood and even more scientific reasons that prove that this could have been a probable cause of destroying the world once