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# The ground water level in County A has decreased drastically

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Senior Manager
Joined: 10 Apr 2012
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Location: United States
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WE: Project Management (Telecommunications)
The ground water level in County A has decreased drastically [#permalink]

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04 Apr 2013, 12:34
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Question Stats:

47% (01:37) correct 53% (01:45) wrong based on 353 sessions

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The ground water level in County A has decreased drastically over the last few years due to increased ground water consumption. It has been observed that households that do not harvest rainwater inevitably end up consuming greater amounts of ground water than households that use alternative water sources. Therefore, in order to curb the decrease in ground water level, the government has proposed a law making it mandatory for all households to install rainwater-harvesting systems.

Which of the following, if true, would best establish the validity of the government's proposal?

(A)Unharvested rainfall in County A does not significantly boost its ground water level due to the rocky terrain.
(B)Multiple rainwater harvesting systems can store water not only for immediate consumption.
(C)Rainwater harvesting systems conserve less water than certain water recycling systems do.
(D)The new law will place a substantial financial burden on most households.
(E)Households that participate in the program would be less dependent on ground water than would households that do not participate.
[Reveal] Spoiler: OA

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Re: The ground water level in County A has decreased drastically [#permalink]

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05 Sep 2017, 18:25
1
KUDOS
I have an issue with the wording and the intent here - its a strange question, and OA could be either B or A. Both are strong contenders:

The ground water level in County A has decreased drastically over the last few years due to increased ground water consumption. It has been observed that households that do not harvest rainwater inevitably end up consuming greater amounts of ground water than households that use alternative water sources. Therefore, in order to curb the decrease in ground water level, the government has proposed a law making it mandatory for all households to install rainwater-harvesting systems.

CONCL: Need to boost underwater table through rainwater harvesting

Which of the following, if true, would best establish the validity of the government's proposal?

(A)Unharvested rainfall in County A does not significantly boost its ground water level due to the rocky terrain. Okay. But isn't this a fact about unharvested rainfall - that it cannot boost the water table either way?
(B)Multiple rainwater harvesting systems can store water not only for immediate consumption.This point appeared to weave in the household element as well - if each there were multiple harvesting systems, then it can store water NOT ONLY for immediate consumption - but for boosting the UG water table as well

Can someone explain why A is better?

Option B never states - "but for boosting the UG water table as well"
It simply states that rainwater harvesting systems can store water not only for immediate consumption.
Rest information has not been provided in the options and we cannot assume it at all.

Rest for option A - if people can utilize unharvested rainwater efficiently, their reliance on ground water will decrease, leading to an increase in UG water table.
This is an immediate requirement for county A.
Hope this makes it clear and helps!

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Re: The ground water level in County A has decreased drastically [#permalink]

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04 Apr 2013, 13:53
It is weird as question because generally the evaluate the argument in OG use always the word at the beginning of the answer "weather"..

C D and E are out od scope

B is not related to the argument ...or irrelevant.

A is the best but is weird as question...the source ?''
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Kudos [?]: 9063 [0], given: 1154

Senior Manager
Joined: 10 Apr 2012
Posts: 277

Kudos [?]: 1154 [0], given: 325

Location: United States
Concentration: Technology, Other
GPA: 2.44
WE: Project Management (Telecommunications)
Re: The ground water level in County A has decreased drastically [#permalink]

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05 Apr 2013, 02:18
carcass wrote:
It is weird as question because generally the evaluate the argument in OG use always the word at the beginning of the answer "weather"..

C D and E are out od scope

B is not related to the argument ...or irrelevant.

A is the best but is weird as question...the source ?''

You 're right . There was something weird with 'A' that's the reason I wanted to validate it here . I picked it from some online resource for practice . I should refrain from picking random questions like that .

Anyhow , thanks for giving it a shot & highlighting a valuable point .

Here's the explanation-

Analysis: Greater consumption of ground water = lower water level. Rainwater harvesting reduces ground water consumption. CONCLUSION: Rainwater harvesting will curb the decrease in ground water level.

Prediction: To strengthen the argument, the right answer must show that unforeseen circumstances will not prevent the rainwater-harvesting systems from curbing the decrease in water level.

A. Correct. This ensures that harvesting rainwater does not further decrease the ground water level.

B. This information is out of scope.

C. The comparison of rainwater-harvesting systems with recycling systems is irrelevant to the argument.

D. The financial side of the plan is irrelevant to the argument.

E. This was already stated in the argument.

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Re: The ground water level in County A has decreased drastically [#permalink]

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10 Feb 2017, 02:22
Hello from the GMAT Club VerbalBot!

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Re: The ground water level in County A has decreased drastically [#permalink]

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03 Sep 2017, 10:46
I have an issue with the wording and the intent here - its a strange question, and OA could be either B or A. Both are strong contenders:

The ground water level in County A has decreased drastically over the last few years due to increased ground water consumption. It has been observed that households that do not harvest rainwater inevitably end up consuming greater amounts of ground water than households that use alternative water sources. Therefore, in order to curb the decrease in ground water level, the government has proposed a law making it mandatory for all households to install rainwater-harvesting systems.

CONCL: Need to boost underwater table through rainwater harvesting

Which of the following, if true, would best establish the validity of the government's proposal?

(A)Unharvested rainfall in County A does not significantly boost its ground water level due to the rocky terrain. Okay. But isn't this a fact about unharvested rainfall - that it cannot boost the water table either way?
(B)Multiple rainwater harvesting systems can store water not only for immediate consumption.This point appeared to weave in the household element as well - if each there were multiple harvesting systems, then it can store water NOT ONLY for immediate consumption - but for boosting the UG water table as well

Can someone explain why A is better?

Kudos [?]: 21 [0], given: 623

Re: The ground water level in County A has decreased drastically   [#permalink] 03 Sep 2017, 10:46
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