GMAT Question of the Day: Daily via email | Daily via Instagram New to GMAT Club? Watch this Video

 It is currently 25 Feb 2020, 14:26

### GMAT Club Daily Prep

#### 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

# Ethanol is a derivative of corn and other grains. When burned as fuel

 new topic post reply Question banks Downloads My Bookmarks Reviews Important topics
Author Message
TAGS:

### Hide Tags

Retired Moderator
Joined: 23 Oct 2011
Posts: 196
Ethanol is a derivative of corn and other grains. When burned as fuel  [#permalink]

### Show Tags

28 Apr 2012, 21:25
1
00:00

Difficulty:

15% (low)

Question Stats:

75% (01:13) correct 25% (01:26) wrong based on 484 sessions

### HideShow timer Statistics

Ethanol is a derivative of corn and other grains. When burned as fuel, it emits significantly lower levels of carbon monoxide, a major atmospheric pollutant, than does gasoline. For that reason, environmentalists claim that ethanol is a better source of energy than gasoline. Which of the following, if true, most strongly supports the environmentalists’ claim?

A) When burned as fuel, ethanol does not release any pollutants at higher levels than does gasoline.

B) Ethanol is comparable in price to gasoline.

C) Available supplies of corn are sufficient to supply several years’ worth of ethanol.

D) Most gasoline companies already possess the technology to produce ethanol.

E) Ethanol can be used as heating fuel.

Main CR Qs link - http://gmatclub.com/forum/cr-qs-600-700 ... 31508.html
Manager
Joined: 21 Feb 2012
Posts: 64
Location: Canada
Concentration: Finance, General Management
GMAT 1: 600 Q49 V23
GPA: 3.8
WE: Information Technology (Computer Software)
Re: Ethanol is a derivative of corn and other grains. When burned as fuel  [#permalink]

### Show Tags

08 May 2012, 21:56
1
mohankumarbd wrote:
Ethanol is a derivative of corn and other grains. [highlight]When burned as fuel, it emits significantly
lower levels of carbon monoxide, a major atmospheric pollutant, than does gasoline.[/highlight] For that
reason, environmentalists claim that ethanol is a better source of energy than gasoline. Which
of the following, if true, most strongly supports the environmentalists’ claim?
A) When burned as fuel, [highlight]ethanol does not release any pollutants at higher levels than does
gasoline[/highlight].
b) Ethanol is comparable in price to gasoline.
c) Available supplies of corn are sufficient to supply several years’ worth of ethanol.
d) Most gasoline companies already possess the technology to produce ethanol.
e) Ethanol can be used as heating fuel.

Main CR Qs link - cr-qs-600-700-level-131508.html

I have a doubt regarding option A and C.
Option A restates what is already mentioned in the stem.
On the other hand option C states that the corn supplies available are sufficient to supply several years' worth. If corn supply would not have been present in such a amount then there is no point in making use of ethanol.Thus in a way the following points are:
(i)Corn is available in abundance(from the answer choices)
(ii)Ethanol emits less pollution(from stem).
Thus should not the answer be C instead of A??
Please clarify
Manager
Joined: 21 May 2012
Posts: 85
Location: United States (CA)
Re: Ethanol is a derivative of corn and other grains. When burned as fuel  [#permalink]

### Show Tags

22 May 2012, 12:19
1
piyushksharma wrote:
I have a doubt regarding option A and C.
Option A restates what is already mentioned in the stem.
On the other hand option C states that the corn supplies available are sufficient to supply several years' worth. If corn supply would not have been present in such a amount then there is no point in making use of ethanol.Thus in a way the following points are:
(i)Corn is available in abundance(from the answer choices)
(ii)Ethanol emits less pollution(from stem).
Thus should not the answer be C instead of A??
Please clarify

You have to consider that it is possible that there are other pollutants besides carbon monoxide. If say there is Pollutant ABC that exists and ethanol has a higher level of ABC than gasoline, then there's an argument AGAINST ethanol versus gasoline.
Manager
Status: Bunuel's fan!
Joined: 08 Jul 2011
Posts: 118
Re: Ethanol is a derivative of corn and other grains. When burned as fuel  [#permalink]

### Show Tags

29 Apr 2012, 08:32
A) When burned as fuel, ethanol does not release any pollutants at higher levels than does
gasoline. HOLD
b) Ethanol is comparable in price to gasoline. Out of scope
c) Available supplies of corn are sufficient to supply several years’ worth of ethanol.Out of scope
d) Most gasoline companies already possess the technology to produce ethanol. Weaken the argument
e) Ethanol can be used as heating fuel. Out of scope
Manager
Joined: 12 Mar 2012
Posts: 92
Location: India
Concentration: Technology, General Management
GMAT Date: 07-23-2012
WE: Programming (Telecommunications)
Re: Ethanol is a derivative of corn and other grains. When burned as fuel  [#permalink]

### Show Tags

22 May 2012, 11:42
piyushksharma wrote:
mohankumarbd wrote:
Ethanol is a derivative of corn and other grains. [highlight]When burned as fuel, it emits significantly
lower levels of carbon monoxide, a major atmospheric pollutant, than does gasoline.[/highlight] For that
reason, environmentalists claim that ethanol is a better source of energy than gasoline. Which
of the following, if true, most strongly supports the environmentalists’ claim?
A) When burned as fuel, [highlight]ethanol does not release any pollutants at higher levels than does
gasoline[/highlight].
b) Ethanol is comparable in price to gasoline.
c) Available supplies of corn are sufficient to supply several years’ worth of ethanol.
d) Most gasoline companies already possess the technology to produce ethanol.
e) Ethanol can be used as heating fuel.

Main CR Qs link - cr-qs-600-700-level-131508.html

I have a doubt regarding option A and C.
Option A restates what is already mentioned in the stem.
On the other hand option C states that the corn supplies available are sufficient to supply several years' worth. If corn supply would not have been present in such a amount then there is no point in making use of ethanol.Thus in a way the following points are:
(i)Corn is available in abundance(from the answer choices)
(ii)Ethanol emits less pollution(from stem).
Thus should not the answer be C instead of A??
Please clarify

In such kind of Qs first it is better to find out the conclusion.
Here the conclusion is the last sentence of the paragraph.
So the answer choice should support the conclusion and not anything else.
A restates the words already mentioned in the paragraph so keep it on HOLD as restating the words SUPPORTS the conclusion in this case.
C doesn't help in proving that X fuel is better than Y ( i.e. it doesn't support the conclusion) so this option is wrong.
So A is correct.

Hope it helps.
_________________
FOCUS..this is all I need!

Ku-Do!
Manager
Joined: 02 Jan 2011
Posts: 113
Re: Ethanol is a derivative of corn and other grains. When burned as fuel  [#permalink]

### Show Tags

22 May 2012, 19:57
a) When burned as fuel, ethanol does not release any pollutants at higher levels than does
gasoline. - There might be other toxins emitted when burning ethanol and gasoline. This statement compares the same and is apt option - Correct
b) Ethanol is comparable in price to gasoline. - No mention of price comparision - Irrelevant - Incorrect
c) Available supplies of corn are sufficient to supply several years’ worth of ethanol. - Availability of corn supplies is irrelevant in the present context - Incorrect
d) Most gasoline companies already possess the technology to produce ethanol. - Neither weakens nor strengthens the arguement - Incorrect
e) Ethanol can be used as heating fuel. - Uses of Ethanol is not appropriate to the present context - Incorrect
Manager
Joined: 02 Jun 2011
Posts: 111
Re: Ethanol is a derivative of corn and other grains. When burned as fuel  [#permalink]

### Show Tags

23 May 2012, 05:52
piyushksharma wrote:
mohankumarbd wrote:
Ethanol is a derivative of corn and other grains. [highlight]When burned as fuel, it emits significantly
lower levels of carbon monoxide, a major atmospheric pollutant, than does gasoline.[/highlight] For that
reason, environmentalists claim that ethanol is a better source of energy than gasoline. Which
of the following, if true, most strongly supports the environmentalists’ claim?
A) When burned as fuel, [highlight]ethanol does not release any pollutants at higher levels than does
gasoline[/highlight].
b) Ethanol is comparable in price to gasoline.
c) Available supplies of corn are sufficient to supply several years’ worth of ethanol.
d) Most gasoline companies already possess the technology to produce ethanol.
e) Ethanol can be used as heating fuel.

Main CR Qs link - cr-qs-600-700-level-131508.html

I have a doubt regarding option A and C.
Option A restates what is already mentioned in the stem.
On the other hand option C states that the corn supplies available are sufficient to supply several years' worth. If corn supply would not have been present in such a amount then there is no point in making use of ethanol.Thus in a way the following points are:
(i)Corn is available in abundance(from the answer choices)
(ii)Ethanol emits less pollution(from stem).
Thus should not the answer be C instead of A??
Please clarify

Please note the word "for that reason" - the reason is less pollutant. this is 'supported' in A.
Verbal Forum Moderator
Status: Greatness begins beyond your comfort zone
Joined: 08 Dec 2013
Posts: 2456
Location: India
Concentration: General Management, Strategy
Schools: Kelley '20, ISB '19
GPA: 3.2
WE: Information Technology (Consulting)
Re: Ethanol is a derivative of corn and other grains. When burned as fuel  [#permalink]

### Show Tags

04 Feb 2017, 08:38
Ethanol is a derivative of corn and other grains. When burned as fuel, it emits significantly lower levels of carbon monoxide, a major atmospheric pollutant, than does gasoline. For that reason, environmentalists claim that ethanol is a better source of energy than gasoline.
Which of the following, if true, most strongly supports the environmentalists’ claim?
The environmentalists claim that ethanol is superior to gasoline because it emits lower levels of carbon monoxide, a known pollutant. This claim, however, assumes that ethanol does not release any other pollutants at levels greater than does gasoline. If ethanol released twenty times more sulfur into the environment than does gasoline, for example, perhaps it would be a less attractive alternative.

A) When burned as fuel, ethanol does not release any pollutants at higher levels than does gasoline. - CORRECT. This establishes that ethanol is less polluting than gasoline.
b) Ethanol is comparable in price to gasoline. - The price of the fuels is not the issue in the argument. The environmentalists' claim is based on the levels of pollution that the fuels create.
c) Available supplies of corn are sufficient to supply several years’ worth of ethanol. - Whether there is enough corn to produce ethanol is irrelevant to whether it is less polluting than gasoline.
d) Most gasoline companies already possess the technology to produce ethanol. - Whether companies already possess the technology to produce ethanol is irrelevant to whether it is less polluting than gasoline.
e) Ethanol can be used as heating fuel - Whether ethanol can be used as heating fuel is irrelevant to whether it is less polluting than gasoline.

_________________
When everything seems to be going against you, remember that the airplane takes off against the wind, not with it. - Henry Ford
The Moment You Think About Giving Up, Think Of The Reason Why You Held On So Long
Intern
Joined: 30 Jan 2018
Posts: 13
Re: Ethanol is a derivative of corn and other grains. When burned as fuel  [#permalink]

### Show Tags

05 Feb 2018, 15:04
Cares wrote:
piyushksharma wrote:
I have a doubt regarding option A and C.
Option A restates what is already mentioned in the stem.
On the other hand option C states that the corn supplies available are sufficient to supply several years' worth. If corn supply would not have been present in such a amount then there is no point in making use of ethanol.Thus in a way the following points are:
(i)Corn is available in abundance(from the answer choices)
(ii)Ethanol emits less pollution(from stem).
Thus should not the answer be C instead of A??
Please clarify

You have to consider that it is possible that there are other pollutants besides carbon monoxide. If say there is Pollutant ABC that exists and ethanol has a higher level of ABC than gasoline, then there's an argument AGAINST ethanol versus gasoline.

Make sense. In this case option A does not just simply restate the premise, it includes more possibilities and strengthened the conclusion.
Intern
Joined: 28 Jan 2019
Posts: 39
GMAT 1: 730 Q47 V42
Re: Ethanol is a derivative of corn and other grains. When burned as fuel  [#permalink]

### Show Tags

13 Nov 2019, 09:48
Ethanol emits less CO than gasoline.
Therefore better energy source than gasoline.
Environmentalists say better = something that pollutes less.

a) knowing that ethanol does not emit ANY pollutants at higher levels than gasoline does is in line with what the environmentalists claim, and strengthens their claim.  b) irrelevant. we are not talking about price as better
c) irrelevant. environmentalists are not talking about supply to claim it is better.
d) irrelevant. environmentalists are not saying it’s better because it’s easy to produce.
e) irreelvant. environmentalists are not saying it’s better because it can be used at fuel.
Intern
Joined: 12 Aug 2018
Posts: 13
Location: India
GMAT 1: 700 Q50 V34
Re: Ethanol is a derivative of corn and other grains. When burned as fuel  [#permalink]

### Show Tags

13 Nov 2019, 15:03
dexerash wrote:
piyushksharma wrote:
mohankumarbd wrote:
Ethanol is a derivative of corn and other grains. When burned as fuel, it emits significantly
lower levels of carbon monoxide, a major atmospheric pollutant, than does gasoline.
For that
reason, environmentalists claim that ethanol is a better source of energy than gasoline. Which
of the following, if true, most strongly supports the environmentalists’ claim?
A) When burned as fuel, ethanol does not release any pollutants at higher levels than does
gasoline
.
b) Ethanol is comparable in price to gasoline.
c) Available supplies of corn are sufficient to supply several years’ worth of ethanol.
d) Most gasoline companies already possess the technology to produce ethanol.
e) Ethanol can be used as heating fuel.

Main CR Qs link - http://gmatclub.com/forum/cr-qs-600-700 ... 31508.html

I have a doubt regarding option A and C.
Option A restates what is already mentioned in the stem.
On the other hand option C states that the corn supplies available are sufficient to supply several years' worth. If corn supply would not have been present in such a amount then there is no point in making use of ethanol.Thus in a way the following points are:
(i)Corn is available in abundance(from the answer choices)
(ii)Ethanol emits less pollution(from stem).
Thus should not the answer be C instead of A??
Please clarify

In such kind of Qs first it is better to find out the conclusion.
Here the conclusion is the last sentence of the paragraph.
So the answer choice should support the conclusion and not anything else.
A restates the words already mentioned in the paragraph so keep it on HOLD as restating the words SUPPORTS the conclusion in this case.
C doesn't help in proving that X fuel is better than Y ( i.e. it doesn't support the conclusion) so this option is wrong.
So A is correct.

Hope it helps.

I second what piyushksharma says. The stem says us to strength the claim. The claim says that E is a better source of energy. So the Environmentalists claim that E is a better source of energy, not that E is better than G. Option A strengths the claim that E is a better fuel than G not the envi's claim that it is a better source.
I think options C strengths the claim by adding that there's a reserve of supply of Fuel E, thus assuring that it is a better source.

Please correct me if i am wrong.

Experts please ? Bunuel SajjadAhmad
Re: Ethanol is a derivative of corn and other grains. When burned as fuel   [#permalink] 13 Nov 2019, 15:03
Display posts from previous: Sort by

# Ethanol is a derivative of corn and other grains. When burned as fuel

 new topic post reply Question banks Downloads My Bookmarks Reviews Important topics

 Powered by phpBB © phpBB Group | Emoji artwork provided by EmojiOne