Argh woman, stop making me play devil's advocate.

Anything that can create every species of plant life on the planet in a day can probably keep them alive regardless of conditions for a day. I mean, we are talking an omnipotent being here.

I think the idea that genesis was just an anecdote for how things really happened is a far more reasonable concept. Throw in a couple thousand years of the story being passed down as oral tradition amongst the nomadic Jews and you have a holy game of telephone.