B. Deep currents are driven by density differences, while surface currents are driven by wind and Earth's rotation.
Answer: There is no picture provided in this question so I can not be able to help u
Answer B. Continental shelf:
Explanation:
Just looked it on Nasa website says it forms on oceanic and continental plates
I believe a=128/15
I hope this helped a bit~
Moral altruism
they helped informed only by ethical consideration regardless of any rivalry between the teams. Moral altruism is the highest calling in altruism(helping others selflessly) the team did not consider that if they failed to provide shelter to the other team it would get some advantage over it.