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An usually severe winter occurred in Europe after the

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An usually severe winter occurred in Europe after the [#permalink] New post 10 Jun 2008, 19:41
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77% (02:03) correct 23% (01:10) wrong based on 23 sessions
An usually severe winter occurred in Europe after the continent was blanketed by a blue haze resulting from the eruption of the Laki Volcano in the European republic of Iceland in the summer of 1984. Thus, it is evident that major eruptions cause the atmosphere to become cooler than it would be otherwise

Which of the following statements, if true, most seriously weakens the argument above?

The cooling effect triggered by volcanic eruptions in 1985 was counteracted by an unusual warming of Pacific waters.

There is a strong statistical link between volcanic eruptions and the severity of the rainy seasons in India

A few months ago after El Chicn's large eruption in April 1982, air temperatures throughout the region remained higher than expected, given the long-term wather trends.

The climatic effects of major volcanic eruptions can temporarily mask the general warming trend resulting from an excess of carbon dioxide in the atmosphere.

Three months after an early springtime eruption in South America during the late 19th century, sea surface temperatures near the coast began to fall.
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Re: CR - winter [#permalink] New post 10 Jun 2008, 19:42
D seems like a viable option. Wait for your response. Thanks
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Re: CR - winter [#permalink] New post 10 Jun 2008, 19:52
alimad wrote:
D seems like a viable option. Wait for your response. Thanks


Yeah, my response is C
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Re: CR - winter [#permalink] New post 10 Jun 2008, 20:43
C .

>A few months ago after El Chicn's large eruption in April 1982, air >temperatures throughout the region remained higher than >expected, given the long-term wather trends

weakens the generalized conclusion
>it is evident that major eruptions cause the atmosphere to become >cooler than it would be otherwise
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Re: CR - winter [#permalink] New post 10 Jun 2008, 20:48
I actually vote for D as well. What is the OA?
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Re: CR - winter [#permalink] New post 10 Jun 2008, 23:44
alimad wrote:
An usually severe winter occurred in Europe after the continent was blanketed by a blue haze resulting from the eruption of the Laki Volcano in the European republic of Iceland in the summer of 1984. Thus, it is evident that major eruptions cause the atmosphere to become cooler than it would be otherwise

Which of the following statements, if true, most seriously weakens the argument above?

The cooling effect triggered by volcanic eruptions in 1985 was counteracted by an unusual warming of Pacific waters.

There is a strong statistical link between volcanic eruptions and the severity of the rainy seasons in India

A few months ago after El Chicn's large eruption in April 1982, air temperatures throughout the region remained higher than expected, given the long-term wather trends.

The climatic effects of major volcanic eruptions can temporarily mask the general warming trend resulting from an excess of carbon dioxide in the atmosphere.

Three months after an early springtime eruption in South America during the late 19th century, sea surface temperatures near the coast began to fall.


tricky question

its between c and d but i ll chose D in this case because C sites a very specific example which took place before the event (1984) mentioned in the question stem

what is the OA for this one
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Re: CR - winter [#permalink] New post 11 Jun 2008, 00:00
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alimad wrote:
An usually severe winter occurred in Europe after the continent was blanketed by a blue haze resulting from the eruption of the Laki Volcano in the European republic of Iceland in the summer of 1984. Thus, it is evident that major eruptions cause the atmosphere to become cooler than it would be otherwise

A few months ago after El Chicn's large eruption in April 1982, air temperatures throughout the region remained higher than expected, given the long-term wather trends.


The conclusion in this passage is based on evidence that severe winter occured after eruption of the Laki Volcano.
But from C we know that another large eruption didn't make climate cooler (the same type of evidence but with different result). From this we can assume that it is not eruption made atmosphere to become cooler.

So answer is C
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Re: CR - winter [#permalink] New post 11 Jun 2008, 00:33
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Between C and D. I choose D.

C still remains possibility of correct generalization if El Chicn's large eruption is an exception from many other eruptions.
D goes deeply, saying severe winter cannot be an evidence.
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Re: CR - winter [#permalink] New post 11 Jun 2008, 00:44
Hey, :lol:
The argument is weak because it makes a generalization on the basis of only one example. Any example of a volcanic eruption that was not followed by a cooling of the atmosphere weakens this argument. The example of the eruption of El Chichon in 1982, which resulted in higher than normal air temperatures, contradicts the generalization of cooler temperatures following volcanic eruptions

C Correct. This statement properly identifies a weakness in the argument

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Re: CR - winter [#permalink] New post 11 Jun 2008, 14:59
The cooling effect triggered by volcanic eruptions in 1985 was counteracted by an unusual warming of Pacific waters.
The statement says nothing about Pacific waters. Eliminate it
There is a strong statistical link between volcanic eruptions and the severity of the rainy seasons in India
Nothing about rainy seasons. Eliminate it
A few months ago after El Chicn's large eruption in April 1982, air temperatures throughout the region remained higher than expected, given the long-term wather trends.
Correct! It's a proof that volcanic eruptions have nothing to do with atmosphere climate, or at least no direct correlation with a lower temperature.
The climatic effects of major volcanic eruptions can temporarily mask the general warming trend resulting from an excess of carbon dioxide in the atmosphere.
In my opinion, it supports the statement, since it says that the eruption could indeed have a impact on the climate.
Three months after an early springtime eruption in South America during the late 19th century, sea surface temperatures near the coast began to fall.
Nothing about sea temperatures
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Re: CR - winter [#permalink] New post 11 Jun 2008, 15:19
I agree with sondenso's explanation. I go with C too.
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Re: CR - winter [#permalink] New post 11 Jun 2008, 17:24
A C for me too
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Re: CR - winter [#permalink] New post 11 Jun 2008, 23:04
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Sondenso, what is OE for D

Unfortunately, I don't have OG right now.
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Re: CR - winter [#permalink] New post 11 Jun 2008, 23:22
walker wrote:
Unfortunately, I have not OG now


Kidding! :lol:

Here you are!

D This statement supports the argument because it implies that volcanic eruptions cool the atmosphere, given that their effects mask the general warming trend.
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Re: CR - winter [#permalink] New post 12 Jun 2008, 00:27
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Thanks, I just lose obvious things....
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Re: CR - winter [#permalink] New post 06 May 2011, 11:46
OA for this is C.
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Re: CR - winter [#permalink] New post 06 May 2011, 22:21
C in 1:28 min . i think D does nothing but strengthen the argument
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Re: CR - winter [#permalink] New post 26 May 2011, 00:11
no reasoning gap in the argument hence a defender answer option requiring a third party element here.

C does the same,comparing with a situation which didn't follow the rhetoric mentioned in the argument.

Thus C.
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Re: CR - winter [#permalink] New post 04 Jun 2011, 07:10
+1 C
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Re: An usually severe winter occurred in Europe after the [#permalink] New post 20 Oct 2013, 07:22
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Re: An usually severe winter occurred in Europe after the   [#permalink] 20 Oct 2013, 07:22
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