Urban Planner: The installation of green roofs in urban areas can reduce the overall city temperature during summer months, thereby reducing the need for air conditioning and energy consumption. However, despite their benefits, the widespread adoption of green roofs has been slow. This is because the initial cost of installing green roofs is considerably high, and because __________. Which of the following, if true, most logically completes the urban planner’s argument? (A) there are sufficient numbers of skilled laborers available to install green roofs (B) green roof materials are often sourced from suppliers who are located far from urban centers (C) tax incentives for green construction projects are commonly available in urban areas (D) traditional roofing solutions are generally less expensive and quicker to install than green roofs (E) green roofs typically last longer than traditional roofing materials, thus potentially saving money over time

To logically complete the urban planner’s argument, we need to identify a reason that explains the slow adoption of green roofs despite their benefits. The statement already mentions the high initial cost, so the completion should provide an additional reason contributing to this slow adoption. Let's analyze each option: (A) There are sufficient numbers of skilled laborers available to install green roofs. This would actually contradict the idea that the adoption is slow due to labor availability, thus not supporting the argument. (B) Green roof materials are often sourced from suppliers who are located far from urban centers. While this might increase costs, it does not directly address an additional reason beyond initial cost. (C) Tax incentives for green construction projects are commonly available in urban areas. This would encourage adoption, contradicting the slow adoption claim. (D) Traditional roofing solutions are generally less expensive and quicker to install than green roofs. This directly supports the argument by adding another reason (besides high initial cost) for the slow adoption: the cost-effectiveness and quicker installation of traditional roofs. (E) Green roofs typically last longer than traditional roofing materials, thus potentially saving money over time. This suggests a benefit that should encourage adoption, not a reason for slow adoption.

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GMAT Club Olympics 2024 (Day 2): Urban Planner: The installation of

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09 Jul 2024, 08:38

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Need to find an option that would support or strengthen the statement “widespread adoption of green roofs has been slow”

A, C, E - options weaken the above statement.
B- irrelevant, sourcing hasn’t been mentioned.

So, option D is the answer.

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Option D

Statement: green roofing is great but not adoption.
The last sentence gives two reasons why it's not adopted.

Out of the 4 options
Only B and D are close

(B) green roof materials are often sourced from suppliers who are located far from urban centers -- So what they are sourced from far.. is not reason why shouldn't be adopted... maybe logistics is great we don't know...
(D) traditional roofing solutions are generally less expensive and quicker to install than green roofs - Yes only viable option left

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Bunuel

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Came down to B or D. A, C and E supports the conclusion that green roofs are easier to install or are benficial.

Between B and D, eliminated D as sourcing of green roof should not effect their adoption. however D correctly brings out one more point that traditional roofing solutions are quicker to install. so people would prefer those to be installed.
IMO D.

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D is the answer
The tone of the last sentence of the passage mentions the reasons why green roofs are not being installed,
(A) there are sufficient numbers of skilled laborers available to install green roofs - This does not provide a reason as to why green roofs are not being installed, it mentions the advantage instead.
(B) green roof materials are often sourced from suppliers who are located far from urban centers - This seems like an okay option but we shall wait.
(C) tax incentives for green construction projects are commonly available in urban areas. Advantage again
(D) traditional roofing solutions are generally less expensive and quicker to install than green roofs. Gives a reason in continuation to what the last sentence says, This is our answer.
(E) green roofs typically last longer than traditional roofing materials, thus potentially saving money over time. Again advantage, not what we're looking for.

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Option (A) suggests that there are sufficient skilled laborers available to install green roofs. While having skilled labor is important, it doesn't directly explain why adoption is slow. In fact, having skilled labor available would typically facilitate rather than hinder adoption.

Option (B) mentions that green roof materials are often sourced from suppliers far from urban centers. While this could contribute to higher costs and logistical challenges, it doesn't directly explain why adoption is slow due to high initial costs.

Option (C) suggests that tax incentives for green construction projects are commonly available in urban areas. This actually contradicts the argument because tax incentives would encourage adoption rather than slow it down.

Option (D) argues that traditional roofing solutions are cheaper and quicker to install compared to green roofs. This directly supports the urban planner's argument about slow adoption due to high initial costs. If traditional roofs are less expensive and faster to install, it's understandable why many may prefer them despite the benefits of green roofs.

Option (E) states that green roofs last longer than traditional materials, potentially saving money over time. While this is a long-term benefit, it doesn't address the immediate barrier of high initial costs, which is the focus of the argument.

Conclusion:
Among the options provided, Option (D) most logically completes the urban planner's argument. It provides an additional reason why the adoption of green roofs is slow—because traditional roofing solutions are cheaper and quicker to install. This aligns with the argument that high initial costs hinder widespread adoption, despite the benefits of green roofs in reducing energy consumption and urban temperatures. Therefore, the answer is D

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09 Jul 2024, 08:53

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To logically complete the urban planner’s argument, we need to identify a reason that explains the slow adoption of green roofs despite their benefits. The statement already mentions the high initial cost, so the completion should provide an additional reason contributing to this slow adoption.

Let's analyze each option:

(A) There are sufficient numbers of skilled laborers available to install green roofs.

This would actually contradict the idea that the adoption is slow due to labor availability, thus not supporting the argument.

(B) Green roof materials are often sourced from suppliers who are located far from urban centers.

While this might increase costs, it does not directly address an additional reason beyond initial cost.

This would encourage adoption, contradicting the slow adoption claim.

(D) Traditional roofing solutions are generally less expensive and quicker to install than green roofs.

This directly supports the argument by adding another reason (besides high initial cost) for the slow adoption: the cost-effectiveness and quicker installation of traditional roofs.

(E) Green roofs typically last longer than traditional roofing materials, thus potentially saving money over time.

This suggests a benefit that should encourage adoption, not a reason for slow adoption.

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Bunuel

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The best answer should explain why the adoption of green roofs is slow despite their benefits.

Let's analyze the options:

(A) Availability of skilled labor (A) might be a hurdle, but it doesn't directly address the cost concerns mentioned. (B) Source of materials (B) could be a factor, but the focus is on initial cost, not transportation. (C) Tax incentives (C) would encourage adoption, not hinder it. (Eliminate) (D) Traditional roofs being cheaper and faster (D) aligns with the cost and installation time concerns. (E) Long lifespan saving money (E) is a benefit, not a reason for slow adoption. (Eliminate)

Therefore, the most logical explanation for slow adoption is (D): traditional roofing solutions are generally less expensive and quicker to install than green roofs.

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B will add strength to the reason for slower adoption of green roofs. Rest of the points are either out of scope or weakeners.

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D
rest of the options weaken the argument

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Updated on: 11 Jul 2024, 06:51

Originally posted by TheSJ on 09 Jul 2024, 09:09.
Last edited by TheSJ on 11 Jul 2024, 06:51, edited 1 time in total.

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Urban Planner: The installation of green roofs in urban areas can reduce the overall city temperature during summer months, thereby reducing the need for air conditioning and energy consumption. However, despite their benefits, the widespread adoption of green roofs has been slow. This is because the initial cost of installing green roofs is considerably high, and because __________.

Which of the following, if true, most logically completes the urban planner’s argument?

Conclusion -> Despite benefits of green roofs, their widespread adoption has been slow.
We need to give valid reason for this paradox.

(A) there are sufficient numbers of skilled labourers available to install green roofs
This choice goes in opposite direction. Wrong Choice

(B) green roof materials are often sourced from suppliers who are located far from urban canters
Even if this choice is true, this doesn't mean that the adoption of green roofs would be slow. Wrong Choice

(C) tax incentives for green construction projects are commonly available in urban areas.
This choice goes in opposite direction and talks about the benefits of installing green roofs. Wrong Choice

(D) traditional roofing solutions are generally less expensive and quicker to install than green roofs.
This choice talks about the benefits of alternative i.e. traditional roofing solutions and how they are better choice than green roofs in terms of initial costs and installation time. Correct Choice

(E) green roofs typically last longer than traditional roofing materials, thus potentially saving money over time
This choice goes in opposite direction and talks about the benefits of installing green roofs. Wrong Choice

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We need to find a statement which gives another reason as to why green roof adoption is not widespread despite its benefits.

A - A positive statement about green roof installation. Eliminate.

B - Another shortcoming of green roof installation apart from the initial cost being high. Keep it in hold.

C - Again a positive statement and can be easily eliminated.

D - It again reiterates on the cost concept. As per the sentence structure, cost is one factor but we are looking at another cause for this effect. D further delves on the cost concept and hence not the answer.

E - A positive statement. Hence eliminated.

Therefore, B is the answer.

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It is saying despite of benefits the process of adoption of green roofs has been slow due to it's high cost and another there could be some reason which takes time .
It could be it's raw material delivered rate to implement may be it outsource from a long distance so option B could be the reason for this .

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Quote:

(A) there are sufficient numbers of skilled laborers available to install green roofs
- This doesn't tell us why the initial cost is high.

(B) green roof materials are often sourced from suppliers who are located far from urban centers
- This can be a cause of high cost since the suplliers are far away, transportation can cost more, but what about the traditional source? Incorrect, since this is half baked info.

(C) tax incentives for green construction projects are commonly available in urban areas
- This means, the amount should be lower, not higher.

(D) traditional roofing solutions are generally less expensive and quicker to install than green roofs
- This is the correct answer, as it directly attacks/completes the argument as to why the adoption is low for green roofs

(E) green roofs typically last longer than traditional roofing materials, thus potentially saving money over time
- This could be an option for more adoption. Hence, oppposite answer.

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09 Jul 2024, 09:34

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As per the Urban Planner: The installation of green roofs in urban areas can reduce the overall city temperature.
However, despite their benefits, the widespread adoption of green roofs has been slow.
This is because the initial cost of installing green roofs is considerably high, and __________

We have to select the option which most logically complements the underlined portion

Let's analyse and eliminate options:

(A) there are sufficient numbers of skilled laborers available to install green roofs - This statement should help in adoption of green roofs.
(B) green roof materials are often sourced from suppliers who are located far from urban centers - This statement does not give strong reason for not adopting green roofs.
(C) tax incentives for green construction projects are commonly available in urban areas - This statement should help in adoption of green roofs.
(D) traditional roofing solutions are generally less expensive and quicker to install than green roofs - This statement gives an alternative to the green roofs and hence strong reason to not opt green roofs.
(E) green roofs typically last longer than traditional roofing materials, thus potentially saving money over time - This statement should help in adoption of green roofs.

Correct Option: D

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Option A - suggests that there are enough skilled laborers available to install green roofs. However, this does not provide a reason for the slow adoption of green roofs. Incorrect.

Option B - indicates that green roof materials are often sourced from suppliers far from urban centers. While this might affect the cost, it is less direct and does not clearly explain why adoption is slow. Incorrect.

Option C - states that tax incentives for green construction projects are commonly available in urban areas. This would actually encourage the adoption of green roofs rather than hinder it, so it does not logically complete the argument. Incorrect.

Option D - points out that traditional roofing solutions are generally less expensive and quicker to install than green roofs. This directly complements the initial point about the high initial cost and provides a clear additional reason for the slow adoption of green roofs. Correct.

Option E - suggests that green roofs typically last longer than traditional roofing materials, potentially saving money over time. While this is a benefit, it does not explain the slow adoption. Incorrect.
Answer D

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09 Jul 2024, 09:43

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To logically complete the urban planner's argument, we need to identify a reason that explains why the adoption of green roofs has been slow, despite their benefits. The argument already mentions the high initial cost as a barrier, so the correct completion should introduce an additional reason for the slow adoption.

Let's evaluate each option:

(A) "there are sufficient numbers of skilled laborers available to install green roofs"

This statement would actually support the adoption of green roofs by suggesting that labor availability is not a barrier. It does not explain the slow adoption, so it is not a good completion.

(B) "green roof materials are often sourced from suppliers who are located far from urban centers"

This could imply additional costs or logistical challenges, which might contribute to the slow adoption. However, it is less directly related to the argument's focus on the costs and practical aspects of installation.

This statement would support the adoption of green roofs by making them more financially attractive. It contradicts the argument's suggestion that there are barriers to adoption.

(D) "traditional roofing solutions are generally less expensive and quicker to install than green roofs"

This directly addresses the issue by providing a reason why people might prefer traditional roofs despite the benefits of green roofs. It highlights cost and convenience as factors contributing to the slow adoption of green roofs.

(E) "green roofs typically last longer than traditional roofing materials, thus potentially saving money over time"

This statement would support the adoption of green roofs by suggesting long-term financial benefits. It does not explain why adoption has been slow, since it highlights a positive aspect of green roofs.

Among these options, (D) is the most logical completion because it provides an additional reason that aligns with the argument's focus on cost and practical barriers to the adoption of green roofs.

The correct answer is: (D) traditional roofing solutions are generally less expensive and quicker to install than green roofs

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09 Jul 2024, 09:48

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Bunuel

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Inference question
Green roof => reduce temp => reduce AC need and less engery consump
+ BUT slow adoption because High cost + <other reason>

A -> Out of scope - not related to reason why adoption is slow
B -> Out of scope - not related to reason why adoption is slow
c -> Out od scope - doesnt talk about why its not adopted
d-> Correct Answer -> Gives reason for why adoption is slow
e -> This is opposing the reasoning

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09 Jul 2024, 09:55

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Bunuel

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Option A : Although not releated to cost, this would actually mean easier installation. Hence doesn't answer the question that why are green roof not installed more
Option B: Unreleated. Given text doesn't talk about logistics. What if we have a robust logistics network
Option C: Okay this is all the more reason to install green roofs. Doesn't answer why are green roofs not installed more
Option D: Aha! This explains that people prefer inexpensive and quick roofing solutions over green roofs which implicitly would take more time to install and more expensive of course
Option E: All the more reason to take green roof but we are looking for why are green roof not installed more

So according to me Option D

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Bunuel

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a) this should fasten the process of adoption

b)Although this might take time for the installation to happen, it doesn't compare with traditional roof top

c)supports adoption of green roofs

d)this answer fits perfectly, this compares green roof with trad roof which is why the adoption is slower

e) this doesn't explain why there is slow adoption