In swimming to antarctica, what motivates cox to swim a mile in antarctic waters?

Cox motivated to swim because she wants to prove that she can do it, that she can successfully cross the Antarctica; even though something went wrong in her first swim when Lynne Cox's head goes under the water and she change her course because the course she is on is not long enough. 

your spelling is a little off : ]

the law of original horizontality explains:   why rocks appear in layers. correct answer: b the law suggests that all rock layers are originally laid down (deposited) horizontally and can later be deformed.   the principle is used by geologists to make assumptions about the relative ages of sedimentary rocks.