GMAT Question of the Day - Daily to your Mailbox; hard ones only

 It is currently 17 Aug 2018, 00:26

### 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

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

Author Message
TAGS:

### Hide Tags

Retired Moderator
Joined: 23 Oct 2011
Posts: 261
Ethanol is a derivative of corn and other grains. When  [#permalink]

### Show Tags

28 Apr 2012, 22:25
00:00

Difficulty:

15% (low)

Question Stats:

75% (00:51) correct 25% (01:03) wrong based on 464 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 - cr-qs-600-700-level-131508.html

_________________

********************
Push +1 kudos button please, if you like my post.

Manager
Status: Bunuel's fan!
Joined: 08 Jul 2011
Posts: 193
Re: CR - Strengthen - # 2  [#permalink]

### Show Tags

29 Apr 2012, 09:32
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: 21 Feb 2012
Posts: 104
Location: India
Concentration: Finance, General Management
GMAT 1: 600 Q49 V23
GPA: 3.8
WE: Information Technology (Computer Software)
Re: CR - Strengthen - # 2  [#permalink]

### Show Tags

08 May 2012, 22:56
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).
Manager
Joined: 12 Mar 2012
Posts: 139
Location: India
Concentration: Technology, General Management
GMAT Date: 07-23-2012
WE: Programming (Telecommunications)
Re: CR - Strengthen - # 2  [#permalink]

### Show Tags

22 May 2012, 12:42
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).

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!

Current Student
Joined: 21 May 2012
Posts: 96
Location: United States (CA)
Re: CR - Strengthen - # 2  [#permalink]

### Show Tags

22 May 2012, 13:19
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).

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
Joined: 02 Jan 2011
Posts: 172
Re: CR - Strengthen - # 2  [#permalink]

### Show Tags

22 May 2012, 20:57
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: 132
Re: CR - Strengthen - # 2  [#permalink]

### Show Tags

23 May 2012, 06:52
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).

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: 2105
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  [#permalink]

### Show Tags

04 Feb 2017, 09:38
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
+1 Kudos if you find this post helpful

Intern
Joined: 30 Jan 2018
Posts: 15
Re: Ethanol is a derivative of corn and other grains. When  [#permalink]

### Show Tags

05 Feb 2018, 16:04
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).

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.
Re: Ethanol is a derivative of corn and other grains. When &nbs [#permalink] 05 Feb 2018, 16:04
Display posts from previous: Sort by

# Events & Promotions

 Powered by phpBB © phpBB Group | Emoji artwork provided by EmojiOne Kindly note that the GMAT® test is a registered trademark of the Graduate Management Admission Council®, and this site has neither been reviewed nor endorsed by GMAC®.