It's mostly parables.
"And he said unto them, Unto you it is given to know the mystery of the kingdom of God: but unto them that are without, ALL THESE THINGS ARE DONE IN PARABLES: That seeing they may see, and not perceive; and hearing they may hear, and not understand; lest at any time they should be converted, and their sins should be forgiven them." - Mark 4:11-12 KJV
In the tower of Babylon story, they wanted to make a name for themselves. It was a name for God.
The flood (of literal water) never happened.
The FIRMAMENT, separates the "waters above" from the "waters below".
Revelation 17:15 tells you the waters, WHERE THE PROSTITUTE SITS, stands for many peoples, nations, and languages.
Remember these people are afraid of over population.