Noah must have lived on a huge farm & probably grew a lot of the food supply that went on the Ark. He also must have owned forest land where he got his wood supply from. There was probably also a vast untamed stretch of land nearby that contained both exotic foods & animals. There must have been a river & wet lands close at hand too. The ark may have only been built by godly family members & not with the help of outsiders, for the same reason that many of us put our kids in Christian school or home-school them: We don’t want our precious kids corrupted by what is evil, & Noah & his wife probably didn’t want their loved ones corrupted either. Noah would have lived away from the Nephilim, which is what Josephus says he did.