Yes because of there wasn’t any water then we would not need it to survive. We desire water because it helps us survive and live. So, I think C.S. Lewis has a valid point.
Yes, because if their isn’t any fluids than how would we be able to know how to be thirsty. They would say that we would just know how something is because it just happens. God gave us the knowledge to know everything we know.
Yes, because if there was no water then there would no desire for it if there was no God then there would be no desire, but we have seen his miracles and greatness and we desire to see him and fellowship with him to. We believe in the bible and we have seen miracles happen but atheists would say show me God, show us these miracles right now. We have faith in God and he helps us in time of need, and sometime he puts us through tests and trials to see if we truly put our faith in him.