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To process waste more efficiently, the city of Hayfield plans to revis

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To process waste more efficiently, the city of Hayfield plans to revis [#permalink]

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New post 30 Sep 2017, 22:09
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Question Stats:

39% (01:33) correct 61% (01:46) wrong based on 94 sessions

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To process waste more efficiently, the city of Hayfield plans to revise disposal methods for residual waste, which is waste from households that contains recyclable materials that have not yet been processed separately. Residual waste typically contains a mixture of biodegradable materials as well as hazardous toxins. Hayfield plans to use the latest waste-to-energy technology to convert the biodegradable materials from residual waste into energy, thereby making the most efficient use of such waste products.

Which of the following most strengthens the given plan?

A) The quantity of residual waste generated by the city is greater than that of any other kind of waste.

B) Biodegradable materials consist of over three-fifths of the total annual amount of residual waste in Hayfield.

C) Toxins found in waste products are not indistinguishable from non-toxic materials.

D) The latest waste-to-energy technology can also be used to recycle discarded materials other than residual waste.

E) The amount of waste generated by Hayfield’s industrial regions is among the highest anywhere in the country.
[Reveal] Spoiler: OA

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Re: To process waste more efficiently, the city of Hayfield plans to revis [#permalink]

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Plan: efficient use of biodegradable waste products.
We have to strengthen this plan.

If it is proven that toxic wastes can be separated from non toxic ones then our plan of efficient use of residual waste will be successful.

C exactly points out that they can be separated. Hence our plan will work.

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Re: To process waste more efficiently, the city of Hayfield plans to revis [#permalink]

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New post 01 Oct 2017, 05:05
Is n't the option B the better choice?
If 3/5ths of the residual waste generated is bio-degradable and the new waste-to-energy technology will be helpful in converting the biodegradable materials, then doesn't the option B sound better?
Experts please help

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To process waste more efficiently, the city of Hayfield plans to revis [#permalink]

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New post 01 Oct 2017, 06:08
Even I chose B. Could anyone please explain why C is the answer?
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Re: To process waste more efficiently, the city of Hayfield plans to revis [#permalink]

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New post 01 Oct 2017, 06:19
IMO B
Hi I think the answer is B .
We are not concerned whether the toxins can be separated from the residual waste.We want to utilise it effeciently.
B states that three fifths of waste that means we can produce energy as there will be more supply .



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To process waste more efficiently, the city of Hayfield plans to revis [#permalink]

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The point is that biodegradabe materials are mixed with toxic wastes in the residual waste. Hayfied plans to convert biodegradabe material into energy but whether it is possible to do so depends on whether the toxic wastes will cause a problem in conversion process. If we can successfully distinguish between the two, I guess the plan will be a success.

The amount of biodegradabe material present in the residual woudn't matter if we coudn't separate biodegradabe material from toxins.
Besides, the argument isn't taking about the amount of energy generated but rather the feasibility of the process. Hence B doesn't fit here

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Last edited by bunny12345 on 01 Oct 2017, 06:46, edited 1 time in total.

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Re: To process waste more efficiently, the city of Hayfield plans to revis [#permalink]

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New post 01 Oct 2017, 06:44
Okay I got it.

This is a step by step process.
1. The process of collection of Residual waste( Mixture of Bio Deg waste + Toxic waste).
2.Than Hay-field wants to convert this Bio Deg waste to energy.

This is only possible if the mixture can be separated.i.e If we will be able to distinguish between the Biodegradable waste and the Toxic waste.

Please correct me if I am missing something.
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When nothing seem to help, I would go and look at a Stonecutter hammering away at his rock perhaps a hundred time without as much as a crack showing in it.
Yet at the hundred and first blow it would split in two.
And I knew it was not that blow that did it, But all that had gone Before
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Re: To process waste more efficiently, the city of Hayfield plans to revis [#permalink]

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New post 01 Oct 2017, 06:48
IMO D
Because residual waste contains
both biodegradable and toxic waste. If waste to energy technology also converts toxins to energy then this method will be most efficient. Hence D will strengthen the argument.


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Re: To process waste more efficiently, the city of Hayfield plans to revis [#permalink]

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New post 01 Oct 2017, 08:44
bkpolymers1617 wrote:
To process waste more efficiently, the city of Hayfield plans to revise disposal methods for residual waste, which is waste from households that contains recyclable materials that have not yet been processed separately. Residual waste typically contains a mixture of biodegradable materials as well as hazardous toxins. Hayfield plans to use the latest waste-to-energy technology to convert the biodegradable materials from residual waste into energy, thereby making the most efficient use of such waste products.

Which of the following most strengthens the given plan?

A) The quantity of residual waste generated by the city is greater than that of any other kind of waste.

B) Biodegradable materials consist of over three-fifths of the total annual amount of residual waste in Hayfield.

C) Toxins found in waste products are not indistinguishable from non-toxic materials.

D) The latest waste-to-energy technology can also be used to recycle discarded materials other than residual waste.

E) The amount of waste generated by Hayfield’s industrial regions is among the highest anywhere in the country.



Hi...

The answer has to be C if you are given both the choices B and C...

What does the para say..
Lot of residual waste ...
Residual waste consists of biodegradable and hazardous toxics.
Waste to energy means biodegradable to energy..

Now let's see what each statement tells..
B) biodegradable consists of over 3/5 of total..
Yes it will give us more 'waste to energy' and would be close 2nd choice.
But efficient use of waste product does not necessarily mean efficiency of the machine.
So if we take it as only 1/5th of total, does it mean the plan is not working....NO

C) Toxins are not indistinguishable from biodegradable.
Yes, it tells us that plan will work.
Say it is not true, the plan will fall flat..

So C
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Re: To process waste more efficiently, the city of Hayfield plans to revis   [#permalink] 01 Oct 2017, 08:44
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