The region of Flavia has been noticing a steady increase in the incide

Question

The region of Flavia has been noticing a steady increase in the incidence of Fluorosis - a chronic condition caused by excessive intake of fluorine compounds – among its citizens. It is a known fact that Flavian waters – underground, lakes and rivers alike – contain excess of fluorine compounds. So, to reduce the incidence of Fluorosis, the local water supply corporation has started to treat the drinking water to remove excess fluorine compounds before supplying to households for the past two years. However, there has been no appreciable reduction in the incidence of fluorosis.

Which of the following, if true, most helps to explain the fluorosis situation in Flavia?

A. Underground water reserves tend to accumulate fluorine compounds over time, making them a relatively less safe source of water than rivers and lakes are.

B. For a place such as Flavia, which is quite remotely located and is located far away from other towns, water is the primary source of exposure to fluorinated compounds.

C. In the same way fluorine is removed from drinking water, fluorine can also be added to drinking water by anyone.

D. The treatment methods used by the local water supply corporation to remove the fluorine compounds from water are quite outdated and frankly, take a significant amount of time to completely remove all the fluorine compounds.

E. Water from rivers – barely processed – is the main source of water heavily utilized in all production sectors, agriculture and food manufacturing

Rabab36 · Answer

imo option e s correct
confused between d and e

Sam1993 · Answer

Even if methods are outdated and take very long, still these methods remove fluorine completely from water, but there is no change in occurrence of fluorosis, so option d does not resolve the paradox.

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Kestone · Answer

I think the answer is D since E has the assumption that the water will still contain the poisonous compound after it is used in agriculture and food processing.

Cowtommi · Answer

I also confused with D and E but since E gives more pursuadable explanation.

' treat the drinking water' is the key factor.

treat the drinking water to remove excess fluorine compounds before supplying to households
 -> no appreciable reduction in the incidence of fluorosis.

E. Water from rivers – barely processed – is the main source of water heavily utilized in all production sectors, agriculture and food manufacturing

let's see E, says 'barely processed' and 'all production sectors, agriculture and food manufacturing'.

meaning water from rivers are not the drinking water. Hence, fluorine compounds are still in the river.

Article said ' It is a known fact that Flavian waters – underground, lakes and rivers alike – contain excess of fluorine compounds.'

but article does not said  treat underground, lakes and rivers , rather it said  treat drinking water .

Which means other than 'drinking water' is the source of fluorine intake. Just like E says.

Vaishbab · Answer

E is the right answer but I am trying to eliminate C but can't come up with a reason. Can someone explain why C wouldn't be correct?

Cowtommi · Answer

C. In the same way fluorine is removed from drinking water, fluorine can also be added to drinking water by anyone.

C is the assumtion that givin method will be failed. This type always cannot be an answer. We should eliminate this type of choices.

According to the passage,

"the local water supply corporation has started to treat the drinking water to remove excess fluorine compounds before supplying to households for the past two years."

local water supply corporation has " started to treat ".  We should take this information as they succeded. Meaning fluorosis is removed before supplying to households or at least reduced because it has been treated by local water supply corporation.

At this point, we can think that there must be another source of water which local water supply corporation cannot treatable.

The region of Flavia has been noticing a steady increase in the incide

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The region of Flavia has been noticing a steady increase in the incide

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