Answer:
the tendency toward a relatively stable equilibrium between interdependent elements, especially as maintained by physiological processes.
Explanation:
example Ratios of water and minerals.
Body temperature
Diez means 10 in spanish
so ans b. diez
I think (a) because the ocean floor is the crust which is mainly were shallow earthquakes occur. I'm not sure if this is right or not sorry :)
Because it is the coldest contintent on earth :)