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

It is currently 13 Nov 2018, 12:23

Close

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

Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.

Close

Request Expert Reply

Confirm Cancel
Events & Promotions in November
PrevNext
SuMoTuWeThFrSa
28293031123
45678910
11121314151617
18192021222324
2526272829301
Open Detailed Calendar
  • Essential GMAT Time-Management Hacks

     November 14, 2018

     November 14, 2018

     07:00 PM PST

     08:00 PM PST

    Join the webinar and learn time-management tactics that will guarantee you answer all questions, in all sections, on time. Save your spot today! Nov. 14th at 7 PM PST
  • $450 Tuition Credit & Official CAT Packs FREE

     November 15, 2018

     November 15, 2018

     10:00 PM MST

     11:00 PM MST

    EMPOWERgmat is giving away the complete Official GMAT Exam Pack collection worth $100 with the 3 Month Pack ($299)

Recent research indicates that mercury levels in the bodies

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

Hide Tags

Ask GMAT Experts Forum Moderator
User avatar
V
Status: Preparing for GMAT
Joined: 25 Nov 2015
Posts: 982
Location: India
GPA: 3.64
GMAT ToolKit User Premium Member Reviews Badge CAT Tests
Recent research indicates that mercury levels in the bodies  [#permalink]

Show Tags

New post 19 Dec 2017, 09:14
1
00:00
A
B
C
D
E

Difficulty:

  45% (medium)

Question Stats:

65% (01:42) correct 35% (01:41) wrong based on 133 sessions

HideShow timer Statistics

Recent research indicates that mercury levels in the bodies of saltwater fish are higher now than they were a hundred years ago. Mercury from the fish accumulates in the base of the feathers of seabirds that eat saltwater fish. Feathers taken from seabirds stuffed and preserved in the 1900s were found to contain only half as much mercury as do feathers recently taken from living birds of the same species.

The argument depends on the assumption that

A) The number of sources of pollutants in 1900s was much lower than it is now.
B) The quantity of mercury found in the body of a saltwater fish depends on the amount of pollution in the ocean habitat of the fish.
C) The same techniques used today were used to stuff and preserve birds in the 1900s.
D) The process used to preserve birds in the 1900s did not substantially decrease the amount of mercury in the birds’ feathers.
E) The Proportion of saltwater fish in the diet of seabirds has remained the same since the 1900s.

Source - Crackverbal

_________________

Please give kudos, if you like my post

When the going gets tough, the tough gets going...

Intern
Intern
avatar
B
Joined: 17 Dec 2017
Posts: 9
Location: United States
CAT Tests
Re: Recent research indicates that mercury levels in the bodies  [#permalink]

Show Tags

New post 19 Dec 2017, 09:55
I was between D and E.... picked E. My logic in picking E is that the proportion of fish consumption has to be the same, otherwise you cannot compare mercury in seabird diets now to diets in the 1900s. For instance, if seabirds ate far fewer fish in the 1900s but the mercury levels in fish remained the same, that would be a reasonable explanation for why we are seeing more mercury in birds now than in the 1900s. Does that make sense or am I missing something?
Intern
Intern
avatar
B
Joined: 10 Jul 2017
Posts: 16
Re: Recent research indicates that mercury levels in the bodies  [#permalink]

Show Tags

New post 19 Dec 2017, 11:23
ferracaj13 wrote:
I was between D and E.... picked E. My logic in picking E is that the proportion of fish consumption has to be the same, otherwise you cannot compare mercury in seabird diets now to diets in the 1900s. For instance, if seabirds ate far fewer fish in the 1900s but the mercury levels in fish remained the same, that would be a reasonable explanation for why we are seeing more mercury in birds now than in the 1900s. Does that make sense or am I missing something?


E is no where related to conclusion whether mercury levels are same or not... put ANT(assumption negation rule) in D, it gives u the assumption
GMAT Club Bot
Re: Recent research indicates that mercury levels in the bodies &nbs [#permalink] 19 Dec 2017, 11:23
Display posts from previous: Sort by

Recent research indicates that mercury levels in the bodies

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


Copyright

GMAT Club MBA Forum Home| About| Terms and Conditions and Privacy Policy| GMAT Club Rules| Contact| Sitemap

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®.