Answer:
She is in the same place as she started. But she did move 28 units in total.
The human race may survive through survival of the fittest. basically whoever has the biggest stick wins! The body also could adapt to the lack of water so you could preserve your bodily resources and manage them better. Or you could just change the environment to benefit yourself and mankind!
It is because that's a place where no one lives so they're safe.
