Most plants can't survive being submerged for months, especially if they're covered by sediment. Salty water makes it even worse.
Did Noah load seeds of every plant on the ark, and what about those plants that don't reproduce using seeds?
How did he manage to get plant life restarted on every continent? I don't quite see how he was able to start grasses in Kansas when the ark came to rest 15,000 feet up on a mountain in Turkey.
I want to know how he got the eucaylptus trees back growing so fast so they could feed the koalas! How did the carnivores eat when there were no plants for the plant eating animals to eat?
When you try to apply even the tiniest bit of logic to the ark story, the crevos show their true colors. They duck, dodge, and make God into a magician that just made it happen. And they are happy with that.
Sigh....