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A zero-CO2 U.S. economy can be achieved within the next thirty to fift

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New post 25 Jul 2016, 15:56
The question is poorly written. I see "official" answer is E but it actually contradicts the question stem. The question stem states that the wind energy resources is "AVAILABLE". Something inaccessible is inherently not available. Please revise the question.
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New post 11 Sep 2016, 09:52
This question feels the same as when purchasing a bank product, you feel unsure.
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Re: A zero-CO2 U.S. economy can be achieved within the next thirty to fift  [#permalink]

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New post 01 Aug 2017, 21:16
For me it boiled down to constructing an answer question would go to the heart of the argument- zero-CO2 in all the US through generation of renewable energy through non-co2 based means. So if the energy is being produced by x example renewable source then it needs to get to the entire US or else its not serving its purpose to go zero-co2. The only question that goes to what I am imagining is the heart of the issue is not getting energy everywhere. It doesn't matter whether there are other sources, the argument presents one source as the only source.

C is an enticing choice, i narrowed it down to C and E as I was going through the initial list looking for my pre-determined question-answer. The problem that E presented to me was that in face of "the wind being inaccessible" it doesn't matter whether we can store the energy or not because that means the places in the US couldn't get the energy in the first place. I hope that explanation to my reasoning helps.
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Re: A zero-CO2 U.S. economy can be achieved within the next thirty to fift  [#permalink]

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New post 01 Aug 2017, 21:48
A zero-CO2 U.S. economy can be achieved within the next thirty to fifty years without the use of nuclear power. The U.S. renewable energy resource base is vast and practically untapped. Available wind energy resources in 12 Midwestern and Rocky Mountain states equal about 2.5 times the entire electricity production of the United States. Given that we can satisfy our electricity needs by harnessing only 40% of the wind energy resources in these 12 states, it is extremely likely that we will be able to do away with CO2.

The entire argument boils down to the fact that only 40% of the wind energy resources would be required to satisfy the electricity needs of the country => It's likely we will be able to do away with the CO2.
Quote:
The only way this master plan would NOT work is if the wind energy is in inaccessible areas -> This is what I thought as soon as I read the argument.



Which of the following would be most useful to evaluate the above argument?
Quote:
A. What is the amount of wind energy resources available in rest of the states in the United States?
Argument already states that the 12 states have 2.5 times the entire electricity production of the US. SO this is irrelevant. OUT!


Quote:
B. Are there any other renewable energy resources such as solar power, which can be used?

We are only concerned with Wind Energy. OUT!


Quote:
C. With the use of current technologies, what proportion of electricity generated through wind energy can be stored for use at future times when wind may not be blowing?

Current Tech isn't a part of this discussion. Plus, I really don't think the proportion of electricity that can be stored has anything to do with the author's claim that we can do away with CO2


Quote:
D. Are there strong corporate lobbies which will strongly oppose any move to substitute non-renewable sources of energy?

This was a close second for me. Even if they do strongly oppose, they might not be able to win the bill, or it's equivalent, so this options leaves a lot to be desired. Good try but OUT!


Quote:
E. What proportion of wind energy is available only at inaccessible areas?

If majority of the wind energy is ONLY available at inaccessible areas then we will not be able to do away with CO2.
This is the correct answer.
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Re: A zero-CO2 U.S. economy can be achieved within the next thirty to fift  [#permalink]

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New post 02 Aug 2017, 03:33
egmat wrote:
Hi Everyone,

Here's another question from e-GMAT. It is an evaluate question type, which, as experience of recent test takers suggest, is becoming more important on GMAT.

Share your answers with analysis. Looking forward to a healthy discussion :)

A zero-CO2 U.S. economy can be achieved within the next thirty to fifty years without the use of nuclear power. The U.S. renewable energy resource base is vast and practically untapped. Available wind energy resources in 12 Midwestern and Rocky Mountain states equal about 2.5 times the entire electricity production of the United States. Given that we can satisfy our electricity needs by harnessing only 40% of the wind energy resources in these 12 states, it is extremely likely that we will be able to do away with CO2.

Which of the following would be most useful to evaluate the above argument?

A. What is the amount of wind energy resources available in rest of the states in the United States?
B. Are there any other renewable energy resources such as solar power, which can be used?
C. With the use of current technologies, what proportion of electricity generated through wind energy can be stored for use at future times when wind may not be blowing?
D. Are there strong corporate lobbies which will strongly oppose any move to substitute non-renewable sources of energy?
E. What proportion of wind energy is available only at inaccessible areas?

-Chiranjeev Singh


Hello payal
i have a different opinion, please correct me if i am wrong
option E Says that portion of wind energy available at particular place will determine use of that energy at that place. what if 100% energy is available at inaccessible ares then i can tap that energy and what if 0% energy is available at inaccessible areas then i can use transmission system to transmit power
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Re: A zero-CO2 U.S. economy can be achieved within the next thirty to fift  [#permalink]

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New post 02 Aug 2017, 08:43
egmat wrote:
Hi Everyone,

Here's another question from e-GMAT. It is an evaluate question type, which, as experience of recent test takers suggest, is becoming more important on GMAT.

Share your answers with analysis. Looking forward to a healthy discussion :)

A zero-CO2 U.S. economy can be achieved within the next thirty to fifty years without the use of nuclear power. The U.S. renewable energy resource base is vast and practically untapped. Available wind energy resources in 12 Midwestern and Rocky Mountain states equal about 2.5 times the entire electricity production of the United States. Given that we can satisfy our electricity needs by harnessing only 40% of the wind energy resources in these 12 states, it is extremely likely that we will be able to do away with CO2.

Which of the following would be most useful to evaluate the above argument?

A. What is the amount of wind energy resources available in rest of the states in the United States?
B. Are there any other renewable energy resources such as solar power, which can be used?
C. With the use of current technologies, what proportion of electricity generated through wind energy can be stored for use at future times when wind may not be blowing?
D. Are there strong corporate lobbies which will strongly oppose any move to substitute non-renewable sources of energy?
E. What proportion of wind energy is available only at inaccessible areas?

-Chiranjeev Singh


A very good questio from Egamt

The answer is E

To correctly evaluate the conclusion that US will do away with CO2 we need to shown that the wind energy resources available in the said areas are accessible .
If they are not accessible then they can not be harnessed and US will not be able to achieve is commitment .

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Re: A zero-CO2 U.S. economy can be achieved within the next thirty to fift  [#permalink]

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New post 20 Aug 2017, 12:26
E would be a good answer. It talks about energy available to inaccessible areas. If wind energy is not available to these areas then those areas will have to depend on nuclear power. If this is the case the CO2 level goes up. If the wind energy is available then nuclear energy would not be needed and US can achieve the required goal.

Hence (E).

Hope this Helps !
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Re: A zero-CO2 U.S. economy can be achieved within the next thirty to fift  [#permalink]

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New post 20 Aug 2017, 19:42
egmat wrote:
Hi Everyone,

Here's another question from e-GMAT. It is an evaluate question type, which, as experience of recent test takers suggest, is becoming more important on GMAT.

Share your answers with analysis. Looking forward to a healthy discussion :)

A zero-CO2 U.S. economy can be achieved within the next thirty to fifty years without the use of nuclear power. The U.S. renewable energy resource base is vast and practically untapped. Available wind energy resources in 12 Midwestern and Rocky Mountain states equal about 2.5 times the entire electricity production of the United States. Given that we can satisfy our electricity needs by harnessing only 40% of the wind energy resources in these 12 states, it is extremely likely that we will be able to do away with CO2.

Which of the following would be most useful to evaluate the above argument?

A. What is the amount of wind energy resources available in rest of the states in the United States?
B. Are there any other renewable energy resources such as solar power, which can be used?
C. With the use of current technologies, what proportion of electricity generated through wind energy can be stored for use at future times when wind may not be blowing?
D. Are there strong corporate lobbies which will strongly oppose any move to substitute non-renewable sources of energy?
E. What proportion of wind energy is available only at inaccessible areas?

-Chiranjeev Singh



I am sorry, but I think that most of the people who chose C were tied up between C and E. The reason they chose C is that E is not making any sense ( I mean, grammatically)
I just didn't know what does that statement even mean! For starters, "ONLY" does not modify a legit part of the statement.
Not imposing SC on anyone (I am not great at SC, either :-D ), but just trying to say that I did not understand that option. Experts please correct me, if I'm wrong, or else correct the option. :p :lol:
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Re: A zero-CO2 U.S. economy can be achieved within the next thirty to fift &nbs [#permalink] 20 Aug 2017, 19:42

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