What sentence from the passage best supports the author's claim that we cannot take water for granted? A.
In general, saving water involves changing only a few wasteful habits.
B.
Water is the single most important natural resource on Earth.
C.
Most people find that these habits are actually pretty easy to change.
D.
After all, washing your hands takes only ten seconds or so.

B.  Water is the single most important natural resource on Earth.

Explanation:

By stating its importance it shows that we cannot take this for granted. (I think this is it if not, sorry)

i will get back to you let me look in my notes and i will tell you shortly

the roman republic

for us its called a jury or court romans used this when someone was on trial and the republic   would choose guilty or innocent same with jury today