Pollution

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Pollution

by vaibhav.iit2002 » Sat Sep 26, 2009 8:28 am
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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by akhilkathuria » Sat Sep 26, 2009 10:59 am
IMO- A

OA please?

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by pandeyvineet24 » Sat Sep 26, 2009 12:04 pm

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by vaibhav.iit2002 » Sat Sep 26, 2009 12:26 pm
Why C is wrong?

I'll post OA soon.

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by GMATBootcamp » Sat Sep 26, 2009 8:55 pm
Premises of the argument are 1:London imposed strict air-pollution regulations on local industry, 2:the number of bird species seen in and around London has increased. The conclusion is: Similar air-pollution rules should be imposed in other major cities.


a. this is not necessarily the case. local industry may contribute to only a small portion of air pollution. A decrease in this small amount may still be sufficient to increase the bird population. NO
b. air pollution regulation has created some desirable results in increased bird sightings. YES
c. if we want to apply the same regulations then cities must be similar. YES
d. if they want to impose similar rules, they want to obtain similar effects, which is more birds. YES
e. implied in the premise, birds in and around London are representative of the surrounding area. YES

A is the only answer that sticks out like a sore thumb
Paul

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by vaibhav.iit2002 » Sat Sep 26, 2009 9:32 pm
My mistake.... missed something in question :(

OA is A.

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by gmatmachoman » Sat Sep 26, 2009 10:44 pm
IMO A..

@vaibhav U wuld have missed to see the word " entirely" in option A.

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by vaibhav.iit2002 » Sat Sep 26, 2009 11:35 pm
gmatmachoman wrote:IMO A..

@vaibhav U wuld have missed to see the word " entirely" in option A.
Even worse. I missed "EXCEPT" :cry:

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by gmatmachoman » Sun Sep 27, 2009 3:29 am
hehehhe!!

Happens dude!!!

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by bornsupreme » Tue Oct 20, 2009 5:11 am
Hi Vaibhav and other fellow members,

Suppose local industry is not the major problem for air-pollution. Then regulations will have no desire effect since the no. of species of birds will still not increase.
Hence, in a way we are eliminating any other cause of the desired effect by assuming that the local industry is the major source of problem.
In that case A will be a wrong option.
Please respond.

Thanks.
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by vaibhav.iit2002 » Tue Oct 20, 2009 7:10 am
bornsupreme wrote:Hi Vaibhav and other fellow members,

Suppose local industry is not the major problem for air-pollution. Then regulations will have no desire effect since the no. of species of birds will still not increase.
Hence, in a way we are eliminating any other cause of the desired effect by assuming that the local industry is the major source of problem.
In that case A will be a wrong option.
Please respond.

Thanks.
In option A, entirely is culprit. There might be other reasons as well apart from local industry.

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by james33 » Sun May 15, 2016 10:00 pm
Guys can anyone give a decent reason why A is not right.