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# In the years since the city of London imposed strict

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In the years since the city of London imposed strict [#permalink]  06 Jun 2008, 06:06
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In the years since the city of London imposed strict air-pollution regulations on local industry, the number of bird species seen in and around London has increased dramatically. Similar air-pollution rules should be imposed in other major cities.
Each of the following is an assumption made in the argument above EXCEPT:
(A) In most major cities, air-pollution problems are caused almost entirely by local industry.
(B) Air-pollution regulations on industry have a significant impact on the quality of the air.
(C) The air-pollution problems of other major cities are basically similar to those once suffered by London.
(D) An increase in the number of bird species in and around a city is desirable.
(E) The increased sightings of bird species in and around London reflect an actual increase in the number of species in the area.
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Re: CR-assumption [#permalink]  06 Jun 2008, 06:19
I will go with B author does not say anything quantitatively abt improvement in quality of air,i.e. it may be slight impovement or significant improvement.
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Re: CR-assumption [#permalink]  06 Jun 2008, 06:21
B.

zoltan wrote:
In the years since the city of London imposed strict air-pollution regulations on local industry, the number of bird species seen in and around London has increased dramatically. Similar air-pollution rules should be imposed in other major cities.
Each of the following is an assumption made in the argument above EXCEPT:
(A) In most major cities, air-pollution problems are caused almost entirely by local industry.

The first supports his assumption. It uses "almost entirely" rather than saying "entirely". It doesn't make a huge leap.

(B) Air-pollution regulations on industry have a significant impact on the quality of the air.

The passage says nothing about the quality of the air. The passage merely states that strict air-pollution regualtions resulted in the number of bird species seen in and around London. This goes to far to say "significant" impact, when in realtiy, it might not have taken a significant impact to see an increase in bird species in and around London. Only a marginal increase might have been enough to see a difference in the number of bird species.

(C) The air-pollution problems of other major cities are basically similar to those once suffered by London.

This has to be an assumption or the argument in the stem falls apart. The stem assumes that other cities will have the same result as London.

(D) An increase in the number of bird species in and around a city is desirable.

If this were not an assumption, the stem would not cite this as evidence and then move to saying other cities should enact the same regulatins. If you want thing A to occur, and event B causes thing A to occur, then if you do not want thing A, do not recommend event B.

(E) The increased sightings of bird species in and around London reflect an actual increase in the number of species in the area.

This is an assumption or the correlation between the regulations and sightings is not justified.
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J Allen Morris
**I'm pretty sure I'm right, but then again, I'm just a guy with his head up his a$$. GMAT Club Premium Membership - big benefits and savings CEO Joined: 29 Mar 2007 Posts: 2591 Followers: 16 Kudos [?]: 234 [0], given: 0 Re: CR-assumption [#permalink] 06 Jun 2008, 06:33 zoltan wrote: In the years since the city of London imposed strict air-pollution regulations on local industry, the number of bird species seen in and around London has increased dramatically. Similar air-pollution rules should be imposed in other major cities. Each of the following is an assumption made in the argument above EXCEPT: (A) In most major cities, air-pollution problems are caused almost entirely by local industry. (B) Air-pollution regulations on industry have a significant impact on the quality of the air. (C) The air-pollution problems of other major cities are basically similar to those once suffered by London. (D) An increase in the number of bird species in and around a city is desirable. (E) The increased sightings of bird species in and around London reflect an actual increase in the number of species in the area. D. B is def an assumption. SVP Joined: 30 Apr 2008 Posts: 1892 Location: Oklahoma City Schools: Hard Knocks Followers: 34 Kudos [?]: 467 [0], given: 32 Re: CR-assumption [#permalink] 06 Jun 2008, 06:47 But D is assuming that the increase is desireable or the regulations are not necessary. GMATBLACKBELT wrote: zoltan wrote: In the years since the city of London imposed strict air-pollution regulations on local industry, the number of bird species seen in and around London has increased dramatically. Similar air-pollution rules should be imposed in other major cities. Each of the following is an assumption made in the argument above EXCEPT: (A) In most major cities, air-pollution problems are caused almost entirely by local industry. (B) Air-pollution regulations on industry have a significant impact on the quality of the air. (C) The air-pollution problems of other major cities are basically similar to those once suffered by London. (D) An increase in the number of bird species in and around a city is desirable. (E) The increased sightings of bird species in and around London reflect an actual increase in the number of species in the area. D. B is def an assumption. _________________ ------------------------------------ J Allen Morris **I'm pretty sure I'm right, but then again, I'm just a guy with his head up his a$$.

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Re: CR-assumption [#permalink]  06 Jun 2008, 07:20
jallenmorris wrote:
But D is assuming that the increase is desireable or the regulations are not necessary.

GMATBLACKBELT wrote:
zoltan wrote:
In the years since the city of London imposed strict air-pollution regulations on local industry, the number of bird species seen in and around London has increased dramatically. Similar air-pollution rules should be imposed in other major cities.
Each of the following is an assumption made in the argument above EXCEPT:
(A) In most major cities, air-pollution problems are caused almost entirely by local industry.
(B) Air-pollution regulations on industry have a significant impact on the quality of the air.
(C) The air-pollution problems of other major cities are basically similar to those once suffered by London.
(D) An increase in the number of bird species in and around a city is desirable.
(E) The increased sightings of bird species in and around London reflect an actual increase in the number of species in the area.

D.

B is def an assumption.

11-p415016?t=54777&hilit=the+years+since+the+city+London+imposed+strict+air+pollution+regulations+local+industry+the+number+bird+species+seen+around+London+has+increased+dramatically+Similar+air+pollution+rules+should+imposed+other+major+cities#p415016

I hate this question, we are all wrong.
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Re: CR-assumption [#permalink]  06 Jun 2008, 07:42
I agree. This is a bad question. I think A does exaggerate so it is likely not going to be an assumption, but at the same time, it seems that industry being a significant cause is an assumption for the other parts of the argument to make sense.

This is the type of question I shrug my shoulders at and move on.

If the authors of the GMAT were so great at taking their own test, wouldn't they too have gone to top 5 b-schools and left the GMAT writing profession behind? Is there truly that much joy in making 3+ months of our lives hell?
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Re: CR-assumption [#permalink]  08 Jun 2008, 15:31
What is the OA??
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Re: CR-assumption [#permalink]  08 Jun 2008, 17:44
A

did this one at least 3 times already T_T
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Re: CR-assumption [#permalink]  08 Jun 2008, 17:49
I can't believe it's not B...
The statement doesn't say anything about the quality of air.
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Re: CR-assumption [#permalink]  09 Jun 2008, 00:55
Going with A here

"A" puts the onus of air pollution "entirely" on the local industry. If the argument stated that the regulations were imposed only on the local industry then A would have been an assumption.
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Re: CR-assumption [#permalink]  09 Jun 2008, 02:50
OA=A
Re: CR-assumption   [#permalink] 09 Jun 2008, 02:50
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