The stratum corneum is the most superficial layer of the epidermis...it's the one that's exposed to the environment. That's why it's waterproof!
The physical process that tend to change earth geological area and composition would be the plate tectonics.
Hope this helps out
Black for the first,
Brown for the second,
And,
White for the third.
Hope that his helps you..
C. transporting nutrients to cells
