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 Your Progress
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
Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.
Thank you for using the timer!
We noticed you are actually not timing your practice. Click the START button first next time you use the timer.
There are many benefits to timing your practice, including:
Want to score 90 percentile or higher on GMAT CR? Attend this free webinar to learn how to pre-think assumptions and solve the most challenging questions in less than 2 minutes.
The majority of scientists believe that to reduce and stabilize atmosp
[#permalink]
Show Tags
Updated on: 18 Feb 2019, 10:55
3
00:00
A
B
C
D
E
Difficulty:
5% (low)
Question Stats:
86% (01:15) correct 14% (01:25) wrong based on 389 sessions
HideShow timer Statistics
The majority of scientists believe that to reduce and stabilize atmospheric concentrations of carbon dioxide, emissions must be cut at the source by fossil fuels that are burned more efficiently and, in some cases, by alternatives such as hydrogen fuel cells that can replace fossil fuels altogether.
(A) fossil fuels that are burned more efficiently and, in some cases, by alternatives such as hydrogen fuel cells that can replace fossil fuels altogether
(B) fossil fuels that are burned more efficiently and, in some cases, those that are replaced altogether with alternatives such as hydrogen fuel cells
(C) burning fossil fuels more efficiently and, in some cases, by replacing fossil fuels altogether with alternatives such as hydrogen fuel cells
(D) more efficiency in the burning of fossil fuels and, in some cases, by alternatives such as hydrogen fuel cells that can replace fossil fuels altogether
(E) the more efficient burning of fossil fuels and, in some cases, by fossil fuels that are replaced altogether with alternatives such as hydrogen fuel cells
Re: The majority of scientists believe that to reduce and stabilize atmosp
[#permalink]
Show Tags
27 Sep 2007, 20:07
I think (A) is better because there are some errors in (C).
emissions must be cut at the source by burning fossil fuels more efficiently and, in some cases, by replacing fossil fuels altogether with alternatives such as hydrogen fuel cells
Can emissions perform these two actions?
If the subject is something like people, the above sentence makes sense; otherwise, it is dangling.
Re: The majority of scientists believe that to reduce and stabilize atmosp
[#permalink]
Show Tags
27 Sep 2007, 20:24
kaijen wrote:
Test2-64.
The majority of scientists believe that to reduce and stabilize atmospheric concentrations of carbon dioxide, emissions must be cut at the source by fossil fuels that are burned more efficiently and, in some cases, by alternatives such as hydrogen fuel cells that can replace fossil fuels altogether.
(A) fossil fuels that are burned more efficiently and, in some cases, by alternatives such as hydrogen fuel cells that can replace fossil fuels altogether (B) fossil fuels that are burned more efficiently and, in some cases, those that are replaced altogether with alternatives such as hydrogen fuel cells (C) burning fossil fuels more efficiently and, in some cases, by replacing fossil fuels altogether with alternatives such as hydrogen fuel cells (D) more efficiency in the burning of fossil fuels and, in some cases, by alternatives such as hydrogen fuel cells that can replace fossil fuels altogether (E) the more efficient burning of fossil fuels and, in some cases, by fossil fuels that are replaced altogether with alternatives such as hydrogen fuel cells
The sentence has 2 corrections;
1. the clauses that are parallel do not agree on the verb form:
"burned" and "can replace" are not parallel.
2. the modified parts of the two sentence fragments are not well formed.
C - corrects this using "ing" form of the verb and placing the modified fragments in context i.e "burning fossil fuels" and "replacing fossil fuels"
Re: The majority of scientists believe that to reduce and stabilize atmosp
[#permalink]
Show Tags
27 Sep 2007, 21:20
I picked C because the word before the underlined portion is "by", which is a preposition and should be followed by a noun or object. That eliminates D & E, and A and B do not follow the rules on parallelism which leaves us with C.
Re: The majority of scientists believe that to reduce and stabilize atmosp
[#permalink]
Show Tags
05 Sep 2017, 20:40
1
1
This sentence needs a common construction: ‘by + verb-ing’. 'By' is used when you describe the method used to accomplish (HOW) something - exactly what is done in this sentence. The sentence is explaining how the states are going to accomplish the stated goal.
If we say:
You should study daily. By doing so, you will improve consistently.
Or
One can’t become smarter by facing the same challenges every day.
A and B are wrong because emissions can’t be cut by fossil fuels … rather they can be cut by more efficient burning of fossil fuels.
D is not parallel; ‘by more efficiency’ is not parallel to ‘alternatives (fuels)’.
E is not parallel; ‘the more efficient burning’ is not parallel to ‘fossil fuels’.
C is perfectly parallel … by burning || by replacing.
Re: The majority of scientists believe that to reduce and stabilize atmosp
[#permalink]
Show Tags
18 Dec 2017, 06:17
anairamitch1804 wrote:
This sentence needs a common construction: ‘by + verb-ing’. 'By' is used when you describe the method used to accomplish (HOW) something - exactly what is done in this sentence. The sentence is explaining how the states are going to accomplish the stated goal.
If we say:
You should study daily. By doing so, you will improve consistently.
Or
One can’t become smarter by facing the same challenges every day.
A and B are wrong because emissions can’t be cut by fossil fuels … rather they can be cut by more efficient burning of fossil fuels.
D is not parallel; ‘by more efficiency’ is not parallel to ‘alternatives (fuels)’.
E is not parallel; ‘the more efficient burning’ is not parallel to ‘fossil fuels’.
C is perfectly parallel … by burning || by replacing.
Re: The majority of scientists believe that to reduce and stabilize atmosp
[#permalink]
Show Tags
02 Oct 2019, 06:41
The majority of scientists believe that to reduce and stabilize atmospheric concentrations of carbon dioxide, emissions must be cut at the source by fossil fuels that are burned more efficiently and, in some cases, by alternatives such as hydrogen fuel cells that can replace fossil fuels altogether.
(A) fossil fuels that are burned more efficiently and, in some cases, by alternatives such as hydrogen fuel cells that can replace fossil fuels altogether
It would be more meaningful if we say by burning fossil fuels
(B) fossil fuels that are burned more efficiently and, in some cases, those that are replaced altogether with alternatives such as hydrogen fuel cells
After those ( Which has no reference ) sentence is fully crap
(C) burning fossil fuels more efficiently and, in some cases, by replacing fossil fuels altogether with alternatives such as hydrogen fuel cells
Perfect
(D) more efficiency in the burning of fossil fuels and, in some cases, by alternatives such as hydrogen fuel cells that can replace fossil fuels altogether
Meaning error
(E) the more efficient burning of fossil fuels and, in some cases, by fossil fuels that are replaced altogether with alternatives such as hydrogen fuel cells
close
86% (01:15) correct 
