Which of the following is not a function of the kidneys?
a. to carry out gluconeogenesis during prolonged fasting
b. to metabolize vitamin d to its active form
c. to regulate body fluid by controlling excretion from sweat glands
d. to maintain the proper balance between water and salts and between acids and bases

The answer is actually C

Explanation:

I got it right on my test

they had the law tat factories that produces smoke cannot be built near residential buildings.

building of proper sewage system was done to ensure that the waste is carried away from the humans so that they do not get diseases from it.

also they built water systems to provide water in those areas which are drought prone.