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Methane, which is about 20 times more potent at trapping heat than is

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Methane, which is about 20 times more potent at trapping heat than is  [#permalink]

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New post 15 May 2018, 21:51
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Methane, which is about 20 times more potent at trapping heat than is carbon dioxide, accounts for 11 percent of all domestic greenhouse gas emissions, about a third of that is estimated to come from oil and gas operations.


A. dioxide, accounts for 11 percent of all domestic greenhouse gas emissions,

B. dioxide, accounts for 11 percent of all domestic greenhouse gas emissions;

C. dioxide and accounts for 11 percent of all domestic greenhouse gas emissions;

D. dioxide and accounts for 11 percent of all domestic greenhouse gas emissions, and

E. dioxide and accounts for 11 percent of all domestic greenhouse gas emissions,

https://www.nytimes.com/2018/02/12/climate/trump-methane-rule-repeal.html

Methane, which is about 25 times more potent at trapping heat than carbon dioxide, accounts for 9 percent of all domestic greenhouse gas emissions; about a third of that is estimated to come from oil and gas operations. Under the rule, oil and gas companies would have been required to capture leaked methane, update their equipment and write new plans for minimizing waste when drilling on government property.

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Re: Methane, which is about 20 times more potent at trapping heat than is  [#permalink]

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New post 20 May 2018, 11:52
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Bunuel wrote:
Methane, which is about 20 times more potent at trapping heat than is carbon dioxide, accounts for 11 percent of all domestic greenhouse gas emissions, about a third of that is estimated to come from oil and gas operations.


A. dioxide, accounts for 11 percent of all domestic greenhouse gas emissions,

B. dioxide, accounts for 11 percent of all domestic greenhouse gas emissions;

C. dioxide and accounts for 11 percent of all domestic greenhouse gas emissions;

D. dioxide and accounts for 11 percent of all domestic greenhouse gas emissions, and

E. dioxide and accounts for 11 percent of all domestic greenhouse gas emissions,


VERITAS PREP OFFICIAL SOLUTION:



The only decision points in this problem come at the beginning and end of each answer choice, so focus your attention there. In analyzing the choices at the beginning first, you see that (A) and (B) end the “”which” modifying clause at “dioxide” and then introduce the verb “accounts”. This creates the proper structure: “Methane…accounts for this percentage…” (C), (D), and (E) have the “which” clause continue all the way to “emissions” but this doesn’t work! There must be a main verb for the subject “Methane” but there isn’t one in those three answers and you are left with this fragment: Methane…about a third of that…” With this sentence construction error, you can confidently eliminate (C), (D), and (E).

Now look at the remaining difference: In (A) you have a comma at the end, while in (B) you have a semicolon. In (A), after using slash-and-burn to remove the “which” modifier you have this sentence: “Methane accounts for this amount of emissions, about a third of that is estimated to come from this.” You cannot simply connect those two clauses with a comma – it is a textbook “comma splice” error. You would need a conjunction if you were going to use a comma to connect them. (B) properly uses a semi-colon to link together two separate but related clauses: “Methane accounts for this percentage; about a third of that is estimated to come from these sources.” The correct answer is (B).
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Re: Methane, which is about 20 times more potent at trapping heat than is  [#permalink]

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New post 15 May 2018, 22:08
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IMO

B. dioxide, accounts for 11 percent of all domestic greenhouse gas emissions;
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Re: Methane, which is about 20 times more potent at trapping heat than is  [#permalink]

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New post 16 May 2018, 00:42
IMO A.

A. dioxide, accounts for 11 percent of all domestic greenhouse gas emissions,: Correct. noun+noun modifier correctly modifying all domestic green house gas emissions.

B. dioxide, accounts for 11 percent of all domestic greenhouse gas emissions;: The second part marks the beginning of independent clause with "that" referring to the subject of the first independent clause that is methane. Incorrect.

C. dioxide and accounts for 11 percent of all domestic greenhouse gas emissions; Missing verb, incomplete first independent clause. Incorrect.

D. dioxide and accounts for 11 percent of all domestic greenhouse gas emissions, and: Incomplete first independent clause. Incorrect.

E. dioxide and accounts for 11 percent of all domestic greenhouse gas emissions,: Incomplete first independent clause. Incorrect.
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Re: Methane, which is about 20 times more potent at trapping heat than is  [#permalink]

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New post 16 May 2018, 07:04
Siddharth18081991 wrote:
IMO

B. dioxide, accounts for 11 percent of all domestic greenhouse gas emissions;


With (B) as well...

urvashis09 wrote:
IMO A.


Please go through this link for the difference between comma and semi-colon usage ..

https://www.dominatethegmat.com/2012/12 ... vs-commas/
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Re: Methane, which is about 20 times more potent at trapping heat than is  [#permalink]

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New post 16 May 2018, 07:42
A. dioxide, accounts for 11 percent of all domestic greenhouse gas emissions, - correct.

B. dioxide, accounts for 11 percent of all domestic greenhouse gas emissions;
- the second part should be an independent clause, however, it being independent won't make any sense. Incorrect.

C. dioxide and accounts for 11 percent of all domestic greenhouse gas emissions;
- use of "and" is incorrect and same error as is in B.

D. dioxide and accounts for 11 percent of all domestic greenhouse gas emissions, and - "and" is incorrect.

IMO A.

E. dioxide and accounts for 11 percent of all domestic greenhouse gas emissions,
- incorrect for the same reason "and".

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Re: Methane, which is about 20 times more potent at trapping heat than is  [#permalink]

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New post 16 May 2018, 07:56
Abhishek009 wrote:
Siddharth18081991 wrote:
IMO

B. dioxide, accounts for 11 percent of all domestic greenhouse gas emissions;


With (B) as well...

urvashis09 wrote:
IMO A.


Please go through this link for the difference between comma and semi-colon usage ..

https://www.dominatethegmat.com/2012/12 ... vs-commas/



Hi,


Thank you for the input. My question is-what does the "that" in the second independent clause refer to? I was confused between A and B for this very reason since ideally "that" should refer to "methane", which is the subject of the first independent clause. But the structure seems odd then. What do you think?
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Re: Methane, which is about 20 times more potent at trapping heat than is  [#permalink]

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New post 21 May 2018, 09:31
Bunuel wrote:
Now look at the remaining difference: In (A) you have a comma at the end, while in (B) you have a semicolon. In (A), after using slash-and-burn to remove the “which” modifier you have this sentence: “Methane accounts for this amount of emissions, about a third of that is estimated to come from this.” You cannot simply connect those two clauses with a comma – it is a textbook “comma splice” error. You would need a conjunction if you were going to use a comma to connect them. (B) properly uses a semi-colon to link together two separate but related clauses: “Methane accounts for this percentage; about a third of that is estimated to come from these sources.” The correct answer is (B).

Hi,

Whould A be correct, if we changed:" about a third of that is estimated to come from oil and gas operations".?
I mean to transform the clause to noun + noun modifier structure.

Thanks.
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Re: Methane, which is about 20 times more potent at trapping heat than is  [#permalink]

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New post 14 Jan 2019, 02:43
Bunuel wrote:
Methane, which is about 20 times more potent at trapping heat than is carbon dioxide, accounts for 11 percent of all domestic greenhouse gas emissions, about a third of that is estimated to come from oil and gas operations.


A. dioxide, accounts for 11 percent of all domestic greenhouse gas emissions,

B. dioxide, accounts for 11 percent of all domestic greenhouse gas emissions;

C. dioxide and accounts for 11 percent of all domestic greenhouse gas emissions;

D. dioxide and accounts for 11 percent of all domestic greenhouse gas emissions, and

E. dioxide and accounts for 11 percent of all domestic greenhouse gas emissions,

https://www.nytimes.com/2018/02/12/climate/trump-methane-rule-repeal.html

Methane, which is about 25 times more potent at trapping heat than carbon dioxide, accounts for 9 percent of all domestic greenhouse gas emissions; about a third of that is estimated to come from oil and gas operations. Under the rule, oil and gas companies would have been required to capture leaked methane, update their equipment and write new plans for minimizing waste when drilling on government property.



C, D, and E can be eliminated. The part of the sentence that is between two commas needs to be extra information that can be removed, with the sentence still making sense. The ‘and’ at the beginning of these options prevents that. B is the correct option, because this clause needs to have a semi colon at the end, as the next clause is related to it.
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Re: Methane, which is about 20 times more potent at trapping heat than is  [#permalink]

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New post 28 Feb 2019, 02:36
C, D, and E can be eliminated. The part of the sentence that is between two commas needs to be extra information that can be removed, with the sentence still making sense. The ‘and’ at the beginning of these options prevents that. B is the correct option, because this clause needs to have a semi colon at the end, as the next clause is related to it.
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Re: Methane, which is about 20 times more potent at trapping heat than is   [#permalink] 28 Feb 2019, 02:36
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