It is currently 20 Jan 2018, 23:06

### GMAT Club Daily Prep

#### Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized
for You

we will pick new questions that match your level based on your Timer History

Track

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History

# Events & Promotions

###### Events & Promotions in June
Open Detailed Calendar

# Two centuries ago, Tufe Peninsula became separated form the mainland,

Author Message
TAGS:

### Hide Tags

Manager
Joined: 01 Mar 2014
Posts: 137

Kudos [?]: 12 [0], given: 616

Schools: Tepper '18
Re: Two centuries ago, Tufe Peninsula became separated form the mainland, [#permalink]

### Show Tags

27 Mar 2016, 23:29
Two centuries ago, Tufe Peninsula became separated form the mainland, isolating on the newly formed Tufe Island a population of Turfil sunflowers. This population’s descendants grow to be, on average, 40 centimeters shorter than Turfil sunflowers found on the mainland. Tufe Island is significantly drier than Tufe Peninsula was. So the current average height of Tufe’s Turfil sunflowers is undoubtedly at least partially attributable to changes in Tufe’s environmental conditions.

Which of the following is an assumption on which the argument depends?

A. There are no types of vegetation on Tufe Island that are known to benefit from dry conditions. - Irrelevant
B. There were about as many Turfil sunflowers on Tufe Peninsula two centuries ago as there are on Tufe Island today. - Irrelevant
C. The mainland’s environment has not changed in ways that have resulted in Turfil sunflowers on the mainland growing to be 40 centimeters taller than they did two centuries ago. - If we negate this, then that means that the mainland's environment has changed and hence is the reason for difference in length. This is a blow on the conclusion which states that the change in TUFE'S environment is the reason for the difference in height.
D. The soil on Tufe Island, unlike that on the mainland, lacks important nutrients that help Turfil sunflowers survive and grow tall in a dry environment. - This could be a possible explanation of the situation, but does not strengthen the author's conclusion - that environmental conditions on Tufe are a reason for difference in length. Hence this cannot be the assumption that the author made.
E. The 40-centimeter height difference between the Turfil sunflowers on Tufe Island and those on the mainland is the only difference between the two populations. - Irrelevant

Kudos [?]: 12 [0], given: 616

Senior Manager
Joined: 15 Oct 2015
Posts: 362

Kudos [?]: 174 [0], given: 211

Concentration: Finance, Strategy
GPA: 3.93
WE: Account Management (Education)
Re: Two centuries ago, Tufe Peninsula became separated form the mainland, [#permalink]

### Show Tags

03 Apr 2016, 02:43
jet1445 wrote:
Q40:
Two centuries ago, Tufe Peninsula became separated form the mainland, isolating on the newly formed Tufe Island a population of Turfil sunflowers. This population’s descendants grow to be, on average, 40 centimeters shorter than Turfil sunflowers found on the mainland. Tufe Island is significantly drier than Tufe Peninsula was. So the current average height of Tufe’s Turfil sunflowers is undoubtedly at least partially attributable to changes in Tufe’s environmental conditions.

Which of the following is an assumption on which the argument depends?

A. There are no types of vegetation on Tufe Island that are known to benefit from dry conditions.
B. There were about as many Turfil sunflowers on Tufe Peninsula two centuries ago as there are on Tufe Island today.
C. The mainland’s environment has not changed in ways that have resulted in Turfil sunflowers on the mainland growing to be 40 centimeters taller than they did two centuries ago.
D. The soil on Tufe Island, unlike that on the mainland, lacks important nutrients that help Turfil sunflowers survive and grow tall in a dry environment.
E. The 40-centimeter height difference between the Turfil sunflowers on Tufe Island and those on the mainland is the only difference between the two populations.

So the current average height of Tufe’s Turfil sunflowers is undoubtedly at least partially attributable to changes in Tufe’s environmental conditions.

Was that cocnlusion striclty about Tufe ISland? So the mainland is not Tufe as well? Bcos the conclusion didnt say Tufe Island. I guess the answer is yes cos the mainland wasnt named at all.

Kudos [?]: 174 [0], given: 211

Intern
Joined: 17 Mar 2015
Posts: 16

Kudos [?]: 6 [0], given: 13

Re: Two centuries ago, Tufe Peninsula became separated form the mainland, [#permalink]

### Show Tags

13 May 2016, 21:13
I think the question situation needs to be improved...

So the current average height of Tufe’s Turfil sunflowers is undoubtedly at least partially attributable to changes in Tufe’s environmental conditions.

should change to...

So the current average height of Tufe’s Turfil sunflowers is undoubtedly at least partially attributable to changes in Tufe island's environmental conditions.

Option C would then be more appropriate. Both the peninsula and the island are called "Tufe", so as it stands right now, even if you negative option C (mainland's environment HAS changed positively), you can still say that the changes in height are attributable to "changes in environment of Tufe (mainland)"...

What do you think egmat ?

Kudos [?]: 6 [0], given: 13

Intern
Joined: 08 Apr 2016
Posts: 2

Kudos [?]: [0], given: 0

Re: Two centuries ago, Tufe Peninsula became separated form the mainland, [#permalink]

### Show Tags

27 May 2016, 21:14
Hello,

Isn't this should be specific in the question, Tufe Island's Environmental conditions rather than Tufe's Environmental Conditions.

Kudos [?]: [0], given: 0

Intern
Joined: 08 Apr 2016
Posts: 2

Kudos [?]: [0], given: 0

Re: Two centuries ago, Tufe Peninsula became separated form the mainland, [#permalink]

### Show Tags

27 May 2016, 21:17
[quote="TDK82"]I think the question situation needs to be improved...

So the current average height of Tufe’s Turfil sunflowers is undoubtedly at least partially attributable to changes in Tufe’s environmental conditions.

should change to...

So the current average height of Tufe’s Turfil sunflowers is undoubtedly at least partially attributable to changes in Tufe island's environmental conditions.

Option C would then be more appropriate. Both the peninsula and the island are called "Tufe", so as it stands right now, even if you negative option C (mainland's environment HAS changed positively), you can still say that the changes in height are attributable to "changes in environment of Tufe (mainland)"...

I think the same.

Kudos [?]: [0], given: 0

Intern
Joined: 30 Jun 2014
Posts: 38

Kudos [?]: 20 [0], given: 76

Re: Two centuries ago, Tufe Peninsula became separated form the mainland, [#permalink]

### Show Tags

29 May 2016, 05:23
A. There are no types of vegetation on Tufe Island that are known to benefit from dry conditions. -- We're only concerned about Turfil sunflowers.
B. There were about as many Turfil sunflowers on Tufe Peninsula two centuries ago as there are on Tufe Island today. -- The number of sunflowers is irrelevant.
C. The mainland’s environment has not changed in ways that have resulted in Turfil sunflowers on the mainland growing to be 40 centimeters taller than they did two centuries ago. -- Correct assumption. No other cause could lead to the same effect. Also, negating this breaks the conclusion.
D. The soil on Tufe Island, unlike that on the mainland, lacks important nutrients that help Turfil sunflowers survive and grow tall in a dry environment. -- The type of nutrients responsible for the 40-cm additional growth are out of scope.
E. The 40-centimeter height difference between the Turfil sunflowers on Tufe Island and those on the mainland is the only difference between the two populations. -- We are not interested in any other differentiating factors.

Kudos [?]: 20 [0], given: 76

Manager
Joined: 08 Jan 2015
Posts: 86

Kudos [?]: 10 [0], given: 53

Re: Two centuries ago, Tufe Peninsula became separated form the mainland, [#permalink]

### Show Tags

01 Sep 2016, 00:16
Agree with comments above - the argument has to mention Island/Mainland in the conclusions, otherwise, even if C is negated, that doesn't ruin the argument since it's about the changes in the environment. Though, POE helps - no other choice stands closer to C, therefore C is the best option.

Kudos [?]: 10 [0], given: 53

Manager
Joined: 27 Feb 2015
Posts: 59

Kudos [?]: 10 [0], given: 56

Concentration: General Management, Economics
GMAT 1: 630 Q42 V34
WE: Engineering (Transportation)
Re: Two centuries ago, Tufe Peninsula became separated form the mainland, [#permalink]

### Show Tags

01 Oct 2016, 13:06
does option C mean : its actually the plant in tufe peninsula that grows and plant in tufe island does not change and thats why the difference in height??

Kudos [?]: 10 [0], given: 56

Intern
Joined: 31 May 2016
Posts: 1

Kudos [?]: [0], given: 113

Re: Two centuries ago, Tufe Peninsula became separated form the mainland, [#permalink]

### Show Tags

06 Oct 2016, 06:46
C for me.

Height of TSP lesser than Height of TSM
Climate condition at P drier than Climate condition at M
=> Climate impacts TSP.

Therefore assumption should be taken at facevalue of the argumanet, assumption should be a regarding climate and TSP/TSM

Only B fits.

NOTE:
TSM: Tufe Sunflower at MAinland
TSM: Tufe Sunflower at Peninsulat
M: Mainland
P: Peninsula

Kudos [?]: [0], given: 113

Verbal Expert
Joined: 14 Dec 2013
Posts: 3278

Kudos [?]: 3800 [1], given: 22

Location: Germany
Schools: HHL Leipzig
GMAT 1: 780 Q50 V47
WE: Corporate Finance (Pharmaceuticals and Biotech)
Re: Two centuries ago, Tufe Peninsula became separated form the mainland, [#permalink]

### Show Tags

07 Oct 2016, 07:08
1
KUDOS
Expert's post
1
This post was
BOOKMARKED
deepak268 wrote:
does option C mean : its actually the plant in tufe peninsula that grows and plant in tufe island does not change and thats why the difference in height??

No, actually the other way round. The island plants grow 40 cm less than the mainland plants. However the point is not which group grows more - it is the difference in growth that matters:

There are 3 environmental conditions discussed here:

1. Past: the environmental condition of the mainland (the island was a part of the mainland then).
2. Present: the environmental condition of the mainland.
3. Present: the environmental condition of the island.

The argument is:
Present: the plan height on island is different from plant height on main land ( the plants under conditions 2 and 3 are different).
However the reason for this difference is stated as the difference between 1 and 3 ( NOT 2 and 3!)... "Tufe Island is significantly drier than Tufe Peninsula WAS". So it is assumed that condition 2 has not changed in the same way as condition 3.

Another approach (negation):

The mainland’s environment has not changed. Thus the conditions 2 and 3 are same now, so there is no environmental reason that the heights would be different. Thus the argument breaks down.

Option C is hence correct.

Kudos [?]: 3800 [1], given: 22

Senior Manager
Joined: 26 Dec 2015
Posts: 275

Kudos [?]: 67 [1], given: 1

Location: United States (CA)
Concentration: Finance, Strategy
WE: Investment Banking (Venture Capital)
Re: Two centuries ago, Tufe Peninsula became separated form the mainland, [#permalink]

### Show Tags

23 Feb 2017, 07:31
1
KUDOS
With assumption Q's, remember to negate:

A. There are no types of vegetation on Tufe Island that are known to benefit from dry conditions.
"There are types of vegetation that are known to benefit from dry conditions". Out of scope -- we don't care about other types of vegetation
B. There were about as many Turfil sunflowers on Tufe Peninsula two centuries ago as there are on Tufe Island today.
"There were not as many Turfil sunflowers on Peninsula 2 centuries ago as today". Out of scope, this doesnt address weather or any case that would make it true
C. The mainland’s environment has not changed in ways that have resulted in Turfil sunflowers on the mainland growing to be 40 centimeters taller than they did two centuries ago.
"The mainland's environment HAS CHANGED in ways that resulted in T sunflowers on the mainland growing 40cm taller than 2 centuries ago". OK, so you're telling me before T Peninsula separated, both sunflowers were "X" height, then when the separation of the island finalized, the ENVIRONMENT CHANGED, allowing the sunflowers to grow? This would mean the sunflowers are "X+40cm" on the mainland!
D. The soil on Tufe Island, unlike that on the mainland, lacks important nutrients that help Turfil sunflowers survive and grow tall in a dry environment.
"The soil on Island, like that on the mainland, lacks important nutrients". This draws a SIMILARITY between the island and the mainland when comparing SOIL. However, we're curious to know about changed in the ENVIRONMENT and how the two geographies are DIFFERENT.
E. The 40-centimeter height difference between the Turfil sunflowers on Tufe Island and those on the mainland is the only difference between the two populations.
"40-cm height difference between T sunflowers on island and those on mainland is NOT the only difference." Out of scope. So what if it is? Only difference we care about is environmental factors that cause an increase in height

Kudos [?]: 67 [1], given: 1

Intern
Joined: 30 Apr 2016
Posts: 6

Kudos [?]: 1 [0], given: 4

Re: Two centuries ago, Tufe Peninsula became separated form the mainland, [#permalink]

### Show Tags

04 Apr 2017, 19:32
i did not get the question.. can you explaib

Kudos [?]: 1 [0], given: 4

Study Buddy Forum Moderator
Joined: 04 Sep 2016
Posts: 585

Kudos [?]: 140 [0], given: 321

Location: India
WE: Engineering (Other)
Re: Two centuries ago, Tufe Peninsula became separated form the mainland, [#permalink]

### Show Tags

18 Sep 2017, 15:58
Ashitha

Can you please elaborate what did you not understand in this question?
_________________

Press kudos if you liked this post

Kudos [?]: 140 [0], given: 321

Manager
Joined: 17 Aug 2016
Posts: 51

Kudos [?]: 11 [0], given: 26

Re: Two centuries ago, Tufe Peninsula became separated form the mainland, [#permalink]

### Show Tags

19 Sep 2017, 07:50
jet1445 wrote:
Q40:
Two centuries ago, Tufe Peninsula became separated form the mainland, isolating on the newly formed Tufe Island a population of Turfil sunflowers. This population’s descendants grow to be, on average, 40 centimeters shorter than Turfil sunflowers found on the mainland. Tufe Island is significantly drier than Tufe Peninsula was. So the current average height of Tufe’s Turfil sunflowers is undoubtedly at least partially attributable to changes in Tufe’s environmental conditions.

Which of the following is an assumption on which the argument depends?

A. There are no types of vegetation on Tufe Island that are known to benefit from dry conditions.
B. There were about as many Turfil sunflowers on Tufe Peninsula two centuries ago as there are on Tufe Island today.
C. The mainland’s environment has not changed in ways that have resulted in Turfil sunflowers on the mainland growing to be 40 centimeters taller than they did two centuries ago.
D. The soil on Tufe Island, unlike that on the mainland, lacks important nutrients that help Turfil sunflowers survive and grow tall in a dry environment.
E. The 40-centimeter height difference between the Turfil sunflowers on Tufe Island and those on the mainland is the only difference between the two populations.

I got the answer wrong. Here is my understanding of this question -

There are two parts - Tufe Island(TI) and Tufe Mainland(TM)

Premise : TI sunflowers are on an average 40cm shorter than the TM sunflowers. And TI is drier than TM.

Conclusion: Current average height of Tufe’s(TI) Turfil sunflowers is undoubtedly at least partially attributable to changes in Tufe’s environmental conditions.

A. There are no types of vegetation on Tufe Island that are known to benefit from dry conditions. [ we are not interested what is happening to other vegetations - Out of Scope]
B. There were about as many Turfil sunflowers on Tufe Peninsula two centuries ago as there are on Tufe Island today. [ The number of SF is not important to us, their height is]
C. The mainland’s environment has not changed in ways that have resulted in Turfil sunflowers on the mainland growing to be 40 centimeters taller than they did two centuries ago. [This tells us the height of TM Sunflowers has not changed because the environment is same. If this is correct, then the sunflowers in TM have the same height and sunflowers in TI could be smaller because of dryness] [Negation test can also be used to test this - I didn't check silly me!]
D. The soil on Tufe Island, unlike that on the mainland, lacks important nutrients that help Turfil sunflowers survive and grow tall in a dry environment. [This would give alternate reasons for the lack of growth in height and weaken the authors conclusion, so this can't be our answer]
E. The 40-centimeter height difference between the Turfil sunflowers on Tufe Island and those on the mainland is the only difference between the two populations.[I chose this, but this cannot be the correct answer, let's negate this and assume that even if there is some other difference between the two populations, how does that help us in concluding that difference is because of the environment difference? It doesn't hence this is incorrect]

Would be glad if someone can verify these.

Regards,
Squib
_________________

Work Hard! Have Fun! Create History!

Kudos [?]: 11 [0], given: 26

Re: Two centuries ago, Tufe Peninsula became separated form the mainland,   [#permalink] 19 Sep 2017, 07:50

Go to page   Previous    1   2   3   [ 54 posts ]

Display posts from previous: Sort by