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)

answer; the period of time known as the middle ages;

answer: born in saint-dié, in the vosges department, france, he studied law, and was called to the bar at paris in 1854,[2] but soon went into politics, contributing to various newspapers, particularly to le temps. he attacked the second french empire with great violence, directing his opposition especially against baron haussmann, prefect of the seine department. a series of his articles in le temps was later republished as the fantastic tales of haussmannlaxupa (1868).[2]

explanation: