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

It is currently 23 Jul 2014, 10:31

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.

Events & Promotions

Events & Promotions in June
Open Detailed Calendar

The level of lead contamination in US rivers declined

  Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:
VP
VP
avatar
Joined: 26 Apr 2004
Posts: 1226
Location: Taiwan
Followers: 2

Kudos [?]: 48 [0], given: 0

GMAT Tests User
The level of lead contamination in US rivers declined [#permalink] New post 04 Dec 2004, 06:23
00:00
A
B
C
D
E

Difficulty:

  5% (low)

Question Stats:

33% (00:00) correct 67% (02:00) wrong based on 12 sessions
The level of lead contamination in US rivers declined between 1975 and 1985. Federal regulations requiring a drop in industrial discharges of lead went into effect in 1975, but the major cause of the decline was a 75 percent drop in the use of leaded gasoline between 1975 and 1985.

which of the following, if true, best supports the claim that the major cause of the decline in the level of elad contamination in US rivers was the decline in the use of leaded gasoline?

(A)The level of lead contamination in US rivers fell sharply in both 1975 and 1983.

(B)Most of the decline in industrial discharges of lead occurred before 1976, but the largest decline in the level of river contamination occurred between 1980 and 1985.

(C)Levels of lead contamination in rivers fell sharply in 1975-1976 and rose very slightly over the next nine years.

(D)Levels of lead contamination rose in those rivers where there was reduced river flow due to drought

(E)Although the use of leaded gasoline declined 75 percent between 1975 and 1985, 80 percent of the decline took place in 1985.


please reason it, thank you
Manager
Manager
User avatar
Joined: 21 Jul 2004
Posts: 121
Followers: 1

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

GMAT Tests User
 [#permalink] New post 04 Dec 2004, 10:23
i would go w/ B....... will explain if i am correct :oops:
Senior Manager
Senior Manager
User avatar
Joined: 19 Oct 2004
Posts: 320
Location: Missouri, USA
Followers: 1

Kudos [?]: 7 [0], given: 0

GMAT Tests User
 [#permalink] New post 04 Dec 2004, 12:22
B. We need to find a statement which explains the fact that the reduction took place only due to a drop in gasoline discharge. In other words, didnt take place because of the reduction of lead discharge by industries.

_________________

Let's get it right!!!!

VP
VP
avatar
Joined: 26 Apr 2004
Posts: 1226
Location: Taiwan
Followers: 2

Kudos [?]: 48 [0], given: 0

GMAT Tests User
 [#permalink] New post 05 Dec 2004, 07:25
doggita wrote:
i would go w/ B....... will explain if i am correct :oops:


Hi doggita,

the OA indeed is B.

could you explain?

thanks.
Manager
Manager
User avatar
Joined: 31 Aug 2011
Posts: 209
Followers: 2

Kudos [?]: 43 [0], given: 44

CAT Tests
Re: The level of lead contamination in US rivers declined [#permalink] New post 20 Sep 2012, 21:31

_________________

If you found my contribution helpful, please click the +1 Kudos button on the left, I kinda need some =)

Re: The level of lead contamination in US rivers declined   [#permalink] 20 Sep 2012, 21:31
    Similar topics Author Replies Last post
Similar
Topics:
The level of lead contamination in United States rivers laxieqv 15 31 May 2006, 07:43
The level of lead contamination in United States rivers hellom3p 4 02 Mar 2006, 09:40
The level of lead contamination in United States rivers sushom101 6 18 Oct 2005, 14:52
The level of lead contamination in United States rivers rahulraao 12 19 Sep 2005, 18:48
The level of lead contamination in United States rivers WinWinMBA 3 29 Apr 2005, 16:35
Display posts from previous: Sort by

The level of lead contamination in US rivers declined

  Question banks Downloads My Bookmarks Reviews Important topics  


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

Powered by phpBB © phpBB Group and phpBB SEO

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®.