Hi!
Thanks, you have some great questions, im going to go away for a while to do some bible study on this and will come back and give you some answers as detailed as i can answering your question about Noahs ark and the animals thing.
I'll try my best to provide you with some good answers tomorrow early evening UK time.
Im in the UK too, in Leicester in England, where abouts in the UK are you?
God bless!