Find all School-related info fast with the new School-Specific MBA Forum

 It is currently 30 Aug 2016, 07:26

### 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

# Events & Promotions

###### Events & Promotions in June
Open Detailed Calendar

# One tank in a fish-farming system has been contaminated by a

Author Message
TAGS:

### Hide Tags

Director
Joined: 15 Aug 2005
Posts: 798
Location: Singapore
Followers: 2

Kudos [?]: 47 [0], given: 0

One tank in a fish-farming system has been contaminated by a [#permalink]

### Show Tags

11 Sep 2005, 05:07
00:00

Difficulty:

(N/A)

Question Stats:

0% (00:00) correct 100% (01:25) wrong based on 5 sessions

### HideShow timer Statistics

One tank in a fish-farming system has been contaminated by a rapidly reproducing species of algae that kills fish by drastically reducing water circulation. If the owners of the fish farm do nothing to rid the tank of these algae, all of the fish in the system will die.

Which of the following, if true, would most damage the conclusion above?

A. The species of fish in the tank produces waste containing bacteria that will destroy the algae before the algae reach the other tanks.

B. Some of the algae in the contaminated tank will die before reproducing.

C. The species of algae in the tank is a favorite food of Atlantic salmon.

D. There is no effective method of ridding the contaminated tank of algae.

E. All species of algae convert carbon dioxide to oxygen, a function vital to fish life.
_________________

Cheers, Rahul.

GMAT Club Legend
Joined: 07 Jul 2004
Posts: 5062
Location: Singapore
Followers: 30

Kudos [?]: 315 [0], given: 0

### Show Tags

11 Sep 2005, 07:13
A is the best choice. It says that even though the farmer does nothing, the fishes might not die at all.
Senior Manager
Joined: 22 Jun 2004
Posts: 393
Location: Bangalore, India
Followers: 1

Kudos [?]: 6 [0], given: 0

### Show Tags

11 Sep 2005, 08:29
I narrowed down to A & E. I am totally lost.

Why is E wrong ??
Also, please do let me know whether my reasons given below are fine as for rejecting the choice?

rahulraao wrote:
One tank in a fish-farming system has been contaminated by a rapidly reproducing species of algae that kills fish by drastically reducing water circulation. If the owners of the fish farm do nothing to rid the tank of these algae, all of the fish in the system will die.

Which of the following, if true, would most damage the conclusion above?

A. The species of fish in the tank produces waste containing bacteria that will destroy the algae before the algae reach the other tanks.

B. Some of the algae in the contaminated tank will die before reproducing.

***The others that survive may reproduce enough numbers. This still supports the conclusion.

C. The species of algae in the tank is a favorite food of Atlantic salmon.

***Out of scope

D. There is no effective method of ridding the contaminated tank of algae.

***If there is no effective method, there may exist some crude method which can still prevent other fish in the system from dying. The farmers may follow that method.

E. All species of algae convert carbon dioxide to oxygen, a function vital to fish life.

_________________

Awaiting response,

Thnx & Rgds,
Chandra

GMAT Club Legend
Joined: 07 Jul 2004
Posts: 5062
Location: Singapore
Followers: 30

Kudos [?]: 315 [0], given: 0

### Show Tags

11 Sep 2005, 09:04
mallelac wrote:
I narrowed down to A & E. I am totally lost.

Why is E wrong ??
Also, please do let me know whether my reasons given below are fine as for rejecting the choice?

rahulraao wrote:
One tank in a fish-farming system has been contaminated by a rapidly reproducing species of algae that kills fish by drastically reducing water circulation. If the owners of the fish farm do nothing to rid the tank of these algae, all of the fish in the system will die.

Which of the following, if true, would most damage the conclusion above?

A. The species of fish in the tank produces waste containing bacteria that will destroy the algae before the algae reach the other tanks.

B. Some of the algae in the contaminated tank will die before reproducing.

***The others that survive may reproduce enough numbers. This still supports the conclusion.

C. The species of algae in the tank is a favorite food of Atlantic salmon.

***Out of scope

D. There is no effective method of ridding the contaminated tank of algae.

***If there is no effective method, there may exist some crude method which can still prevent other fish in the system from dying. The farmers may follow that method.

E. All species of algae convert carbon dioxide to oxygen, a function vital to fish life.

All E says is that the algae produces oxygen which is vital to fish life. However, this does not counter the argument that the algae hurts water circulation thus killing the fishes. A however says the algae can be broken down, and so the problem posed by the algae is no longer present.
SVP
Joined: 28 May 2005
Posts: 1723
Location: Dhaka
Followers: 7

Kudos [?]: 252 [0], given: 0

### Show Tags

11 Sep 2005, 14:42
A it is.
_________________

hey ya......

Senior Manager
Joined: 13 Jan 2005
Posts: 331
Followers: 1

Kudos [?]: 2 [0], given: 12

### Show Tags

15 Sep 2005, 19:26
A.

GA
Senior Manager
Joined: 15 Aug 2005
Posts: 257
Location: Las Vegas, NV
Followers: 2

Kudos [?]: 4 [0], given: 0

### Show Tags

16 Sep 2005, 08:51
A here. Nothing else comes close enough to damaging the conclusion. If the algae is stopped before circulating than it won't cause the deaths of the fish at the farm.
Director
Joined: 23 Jun 2005
Posts: 847
GMAT 1: 740 Q48 V42
Followers: 5

Kudos [?]: 52 [0], given: 1

### Show Tags

16 Sep 2005, 09:15
ywilfred wrote:
A is the best choice. It says that even though the farmer does nothing, the fishes might not die at all.

Safe bet A with wilfred!
Director
Joined: 15 Aug 2005
Posts: 798
Location: Singapore
Followers: 2

Kudos [?]: 47 [0], given: 0

### Show Tags

16 Sep 2005, 21:44
OA is indeed A guys! I was confused between A and E though!
_________________

Cheers, Rahul.

Director
Joined: 09 Jul 2005
Posts: 595
Followers: 2

Kudos [?]: 51 [0], given: 0

### Show Tags

21 Sep 2005, 13:37
IMO A, just practicing....
Similar topics Replies Last post
Similar
Topics:
19 The subway system in New City has recently been running a 18 21 Sep 2012, 21:09
1 Studying regularly is one factor that has been shown to 6 24 Feb 2012, 14:32
1 Computer operating system software has become increasingly 4 01 Jul 2009, 01:42
In our solar system only one of the nine 13 13 Apr 2009, 09:29
3 Eva: A smart highway system should be installed, one that 10 12 Nov 2007, 10:34
Display posts from previous: Sort by