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There has been no significant snowfall in San Francisco since 1976, but that could be about to change: meteorologists are predicting that the rare conjunction of a Pacific rainstorm and a powerful front of cold air blowing south from Canada will lead to the region’s first significant snowfall in over 25 years.

Which of the following do the statements above best support?

A. There has been no snow in San Francisco in 25 years.

We only know that rainfall is not significant since 1976 in SFO. Significant doesn't mean no snow. There this option is not supported by statements above.

B. There will soon be a snowstorm in San Francisco.

Well meteorologists are just predicticing that this conjuction will lead to a snowfall. But predictions may not come true. Not supported.

C. San Francisco is ill-equipped to handle a significant snowfall.

Whether SFO is ill-equipped is not mentioned. Not supported.

D. In some regions, Pacific rain rarely coincides with Canadian cold fronts.

We are given that this is a rare conjunction of a Pacific rainstorm and a powerful front of cold air blowing south from Canada. This option just rephrase this statement. Supported.

E. It is not currently snowing in the Bay Area.

We are given that "that(i.e. no significant snowfall since 1976) could be about to change". But we cannot say from this statement whether it is snowing or not in bay area. Not supported.


Should be D
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There has been no significant snowfall in San Francisco since 1976, but that could be about to change: meteorologists are predicting that the rare conjunction of a Pacific rainstorm and a powerful front of cold air blowing south from Canada will lead to the region’s first significant snowfall in over 25 years.

Which of the following do the statements above best support?

A. There has been no snow in San Francisco in 25 years.

B. There will soon be a snowstorm in San Francisco.

C. San Francisco is ill-equipped to handle a significant snowfall.

D. In some regions, Pacific rain rarely coincides with Canadian cold fronts.

E. It is not currently snowing in the Bay Area.

Hi VeritasKarishma,

I was stuck between answer choice D and E. Although answer choice 'E' seemed clearly wrong after a little more investigation, I selected D. But answer choice 'D' says -

In some regions, Pacific rain rarely coincides with Canadian cold fronts. - In this scenario can we still assume that "In some regions" are still referring to some regions in San Fransisco. I felt this is a little ambiguous.
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KarishmaB, Hi i want to understand what could be the pre-thinking here, though i got this question right (but usually am not able to pre-think in inference type)
If you can provide some info. on this
KarishmaB


No significant snowfall in SF in 25 yrs
The rare conjunction of a Pacific rainstorm and a powerful front of cold air from Canada will lead to the region’s first significant snowfall in over 25 years.
So SF will see significant snow.

We are looking for an inference. Something that must be true according to argument above. Hence, the correct option should bring in no new information.

A. There has been no snow in San Francisco in 25 years.

The argument talks about "significant" snow.

B. There will soon be a snowstorm in San Francisco.

We don't know whether there will be a "snowstorm". We only know there will be "significant" snow.

C. San Francisco is ill-equipped to handle a significant snowfall.

Out of scope. No idea.

D. In some regions, Pacific rain rarely coincides with Canadian cold fronts.

Correct. We definitely know that in SF Pacific rain rarely coincides with Canadian cold fronts. So we can say that in "some regions" this happens. We already have one example where it happens. "Some" means "at least one".
Option (D) is true as per our argument.

E. It is not currently snowing in the Bay Area.

We don't know. The argument talks about "significant" snow. It could be currently snowing in SF but a little bit only.

Answer (D)
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Hi MS26 let me try to help

There has been no significant snowfall in San Francisco since 1976,- Since 1976 In San Francisco, the snowfall is happening but that is not significant(lets say for significant it has to cross 10mm avg snowfall) but since 1976 it is below or at 10mm

but that could be about to change:- Meteorologists are pedicting that SF is going to experience more than 10mm snowfall

meteorologists are predicting that the rare conjunction of a Pacific rainstorm and a powerful front of cold air blowing south from Canada will lead to the region’s first significant snowfall in over 25 years.- this the reason for prediction that in SF there will be rare meeting or conjunction of PRS and cold air storm which is a powerful and in this 25 years it will be the 1st one.

So for prethink we know that as per given data no significant snowfall happened in 25 yrs, and we are told that the significant snowfall may take place because of rare conjunction.
So 1st prethinking can be like

1. Rare conjunction may not have taken place in sf

2. Rare conjunction may have happened in some part of SF

3. Or any thing which revolves around Rare conjunction, snowfall, and san Francisco which is supported by the given information can be the inference.

I can think of this much only, hope this helps


MS26
KarishmaB, Hi i want to understand what could be the pre-thinking here, though i got this question right (but usually am not able to pre-think in inference type)
If you can provide some info. on this
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