in genesis 6-9, god believed that the humans have made the world a violent place. to fix this god sends out a great flood that covers the entire earth, killing everyone but noah and his family.
in genesis 6-9, when all of the water finally subsided from the earth, noah came out of his ark to find that he had landed right on the top of a great mountain.
in genesis 6-9, noah sends out a single dove from his ark to see if the water had dried and it came back immediately. the second time he tried the bird came back with an olive tree leaf, the third time he did not return at all.