what is mabul? and how to fight with that?

ב"ה Shalom The "mabul "( = in Hebrew) was a catastrophic event inflicted on mankind by G-d, in the time of Noach. It took place in the year 1656 of Creation (2105 BCE and it lasted 12 months. G-d brought upon the earth, because mankind had corrupted its behavior with adultery and other abominations and what clinched it all was the issue of stealing one from another. (Rashi.) Noah and his family survived the Mabul as well as the many species of animals which Noach took with him aboard his ark. The full story can be found in the book of Bereshit 6-11. All the best