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In the years since the city of London imposed strict [#permalink]
19 Aug 2006, 08:43
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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.
1. Too extreme. It assumes that in major cities air pollution is entirely caused by the local industry. That might not be the case.
2. Negating this statement has no effect on the conclusion. Even if the air pollution is not entirely caused by the local industry in major cities it does not refute the conclusion that the rules should be imposed.