Language seems the obvious answer
Answer:
I think it is rivers because you can't drink out of the ocean and lakes are nasty aquifers are usually smaller so rivers would be most likely
Explanation:
I would personally say partition.
Sorry id this wasn't the answer you were looking for :(
Our sun, is only a medium size star!
A. Cosmology
Cosmology means the study of the cosmos, cosmo- means of or relating to the universe, therefore cosmology means the study of the universe. So it is the correct answer.