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His studies of ice-polished rocks in his Alpine homeland, far outside

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The Official Guide for GMAT Review, 2015

Practice Question
Question No.: SC 72
Page: 685

His studies of ice-polished rocks in his Alpine homeland, far outside the range of present-day glaciers, led Louis Agassiz in 1837 to propose the concept of an age in which great ice sheets had existed in now currently temperate areas.

(A) in which great ice sheets had existed in now currently temperate areas
(B) in which great ice sheets existed in what are now temperate areas
(C) when great ice sheets existed where there were areas now temperate
(D) when great ice sheets had existed in current temperate areas
(E) when great ice sheets existed in areas now that are temperate

[Reveal] Spoiler:
Please give some help full tips to spot the adverb in a sentence also let me know the rules of placing the adverb.
[Reveal] Spoiler: OA

Last edited by hazelnut on 29 Oct 2017, 21:48, edited 5 times in total.
Formatted the question.

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Re: His studies of ice-polished rocks in his Alpine homeland, far outside [#permalink]

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Kiranjith:

1. You have not underlined the relevant portion;

2. Please appreciate that Chocie A has to be exactly ditto as found in the text; Else, this question wouldn't make GMAT grade; We are spending lot of time on these questions

3. Generally, Your topics and queries are good.

Adverbs modify verbs or adjectives. Here in the text, - now -, an adverb, modifies- temperate,- an adjective. Adverbs normally answer such questions as when, where, what extent etc;

Some adverbs are called restrictive adverbs as they limit the extent of action or proportion –examples- exclusively, only, now, solely, and just, etc.

Many of the adverbs are easy to identify since they end in ‘ly’
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Last edited by daagh on 02 May 2015, 23:43, edited 1 time in total.

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New post 24 Jan 2014, 11:24
Hi Kiranjith,

Which adverbs are you referring to in this case? Could you state your query in a more detailed and specific way, and try to present your understanding of the question?

Thanks!

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New post 02 May 2015, 23:34
past perfect, according to gmat standard, have only one usage. do not take the standards from grammar book for the use of had done.
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New post 05 May 2015, 12:28
Why not A ? My shot was that we need past perfect here..

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Re: His studies of ice-polished rocks in his Alpine homeland, far outside [#permalink]

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New post 05 May 2015, 14:30
1) should be past simple
2)adverb "now" should be properly placed , after verb, not as an adjective

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New post 13 Jun 2015, 22:43
Why is D a wrong choice? When we talk about "age", shouldn't the term "when" follow?

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"When and in which" both are used to modify a time period but here the period is already defined by the word "age".

"age in which" is correct and not "age when"

this gives us 3-2 split.

past perfect is only used when we want to sequence 2 events. Since only 1 event is described here, so no need of past perfect.

we are left with only B.

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New post 23 Jun 2015, 22:29
LaxAvenger wrote:
Why not A ? My shot was that we need past perfect here..


because of now and currently usage. Both have same meaning so either now or currently should be used to avoid redundancy.

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aakashbaweja wrote:
"When and in which" both are used to modify a time period but here the period is already defined by the word "age".

"age in which" is correct and not "age when"

this gives us 3-2 split.

past perfect is only used when we want to sequence 2 events. Since only 1 event is described here, so no need of past perfect.

we are left with only B.



WHEN CLAUSE can work as adverb: I learn gmat when you come
WHEN CLAUSE can work as an adjective, the age when you came is good.

"the age when" is correct
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His studies of ice-polished rocks in his Alpine home land, far outside the range of present-day glaciers, led Louis Agassiz in 1837 to propose the concept of an age in which great ice sheets had existed in now currently temperate areas.

(A) in which great ice sheets had existed in now currently temperate areas
(B) in which great ice sheets existed in what are now temperate areas
(C) when great ice sheets existed where there were areas now temperate
(D) when great ice sheets had existed in current temperate areas
(E) when great ice sheets existed in areas now that are temperate

[Reveal] Spoiler:
I am not comfortable with official explanation for this question. It looks confusing and I am unable to differentiate the usage of "when" and "in which". Can someone please simply the usage of term"in which".

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‘In which’ is used in cases, where we cannot use which directly in the context for some genuine reasons. Otherwise, ‘in which’ means the same as ‘which’. For example, we cannot use ‘which’ when we refer to a period; we cannot use which when referring to a place. In such cases we can still use the prepositional phrase ‘in which’ and make the correct meaning.

Ex 1: I belong to the golden times when elders were respected rather than unwelcome.
I belong to the golden times in which elders were respected rather than unwelcome

Ex 2: In the olden Kerala where Matriarchy was in practice, women were dominant.
The olden Kerala in which Matriarchy was in practice, women were dominant.

The additional factor in favor of ‘in which’ is that the prepositional phrase can be used gainfully to replace the relative pronouns 'when' and 'where' as in the given a case.
Here in the context, ‘when’ has a problem. It might mean that Louis made the proposal in 1837 when Ice sheets had existed. This twisted meaning renders the use of ‘When’ as inappropriate. Hence C, D, and E can be dumped even without proceeding further. The correct choice should be between A and B. , Of course, A is wrong because ‘now currently’ is redundancy. B is the correct choice.
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Last edited by daagh on 21 Sep 2017, 03:31, edited 1 time in total.

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New post 12 Oct 2015, 21:36
daagh wrote:
‘In which’ is used in cases, where we cannot use which directly in the context for some genuine reasons. Otherwise, ‘in which’ means the same as ‘which’. For example, we cannot use ‘which’ when we refer to a period; we cannot use which when referring to a place. In such cases we can still use the prepositional phrase ‘in which’ and make the correct meaning.

Ex 1: I belong to the golden tines when elders were respected rather than unwelcome.
I belong to the golden times in which elders were respected rather than unwelcome

Ex 2: In the olden Kerala where Matriarchy was in practice, women were dominant.
The olden Kerala in which Matriarchy was in practice, women were dominant.

The additional factor in favor of ‘in which’ is that, the prepositional phrase can be used gainfully to replace the relative pronouns 'when' and 'where' as in the given a case.
Here in the context, ‘when’ has a problem. It might mean that Louis made the proposal in 1837, when Ice sheets had existed. This twisted meaning renders the use of ‘When’ as inappropriate. Hence C, D and E can be dumped even without proceeding further. The correct choice should be between A and B. Of course A is wrong because ‘now currently’ is redundancy. B is the correct choice.


great explanation, new info for me

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New post 12 Oct 2015, 22:11
daagh wrote:
Ex 1: I belong to the golden tines when elders were respected rather than unwelcome.
I belong to the golden times in which elders were respected rather than unwelcome

Thanks for your explanation. This was not very clear to me. Is the first sentence incorrect, or are both sentences correct here?

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New post 12 Oct 2015, 22:51
Hi,

The fact that A has "now" and "currently" is enough to rule it out as wrong.

Regards,
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snorkeler wrote:
Q)His studies of ice-polished rocks in his Alpine
homeland, far outside the range of present-day
glaciers, led Louis Agassiz in 1837 to propose the
concept of an age in which great ice sheets had
existed in now currently temperate areas


(A) in which great ice sheets had existed in now
currently temperate areas
(B) in which great ice sheets existed in what are
now temperate areas
(C) when great ice sheets existed where there were
areas now temperate
(D) when great ice sheets had existed in current
temperate areas
(E) when great ice sheets existed in areas now that
are temperate


hi,
if you are referring to existed and had existed....
when do we use past perfect :-
" It is used to make it clear that one event happened before another in the past. It does not matter which event is mentioned first - the tense makes it clear which one happened first."

but here there is only one age we are talking of ...
One may feel that it is prior to the present age, but we do not have two actions in the sentence and thus there is no confusion of which action happened earlier..
So, we should keep our sentence in simple past..
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Isn't that existence of great ice sheets occurred prior to his proposal of concept?, Do I need to consider them as two different events occurred in different time scale or is it a single event? I'm bit confused here.. Pls let me know where my logic goes wrong..
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New post 21 Jan 2016, 05:19
The time period is mentioned, I think that places the two time frames in their respective order, so past perfect is not required.. IMO.
Anyone pls confirm.
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snorkeler wrote:
Isn't that existence of great ice sheets occurred prior to his proposal of concept?, Do I need to consider them as two different events occurred in different time scale or is it a single event? I'm bit confused here.. Pls let me know where my logic goes wrong..


yeah you are correct that proposal of a concept and existence of great ice sheets were at two different times..

But the moment you say he proposed the concept of an age after going through some studies of..., it clearly shows that the age was naturally before he proposed about it existing..
There is no ambiguity in the chronological order..

And when there is no ambiguity, we can avoid the past perfect..

some more example,
The scientist proposed in 1976 that the dinosaurs became extinct during ice age..
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Re: His studies of ice-polished rocks in his Alpine homeland, far outside [#permalink]

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New post 21 Jan 2016, 05:46
snorkeler wrote:
Q)His studies of ice-polished rocks in his Alpine homeland, far outside the range of present-day glaciers, led Louis Agassiz in 1837 to propose the concept of an age in which great ice sheets had
existed in now currently temperate areas


(A) in which great ice sheets had existed in now currently temperate areas
(B) in which great ice sheets existed in what are now temperate areas
(C) when great ice sheets existed where there were areas now temperate
(D) when great ice sheets had existed in current temperate areas
(E) when great ice sheets existed in areas now that are temperate


Search for a question before posting a new thread. Refer above for the discussion on this question. Topics merged.

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Re: His studies of ice-polished rocks in his Alpine homeland, far outside   [#permalink] 21 Jan 2016, 05:46

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