Live GMAT classes with Target Test Prep start Nov 21 and Nov 22. First class free.

See classes
Target Test Prep · GMAT

Choose how you want to prepare

Learn live with an expert or move at your own pace. Every option includes the complete TTP study system.

Newsweek Readers’ Choice Awards 2026 winner: Target Test Prep, #1 Test Prep

Target Test Prep was voted #1 Best Test Prep in the 2026 Newsweek Readers’ Choice™ Awards.

★★★★★5.0563 reviews
GMATLiveTeachStarts Nov 22
Josh Braslow, Target Test Prep GMAT expert
LIVE ONLINE CLASSES

Get Ready for GMAT Test Day Faster with Live Online Classes

with Josh Braslow, 20+ years in test prep

Nov 22 · Josh Braslow
Sun · 9:30 AM to 12:30 PM ET
Included
40 hours of live online classes + 6 months of TTP OnDemand
  • Attend the first class for free
  • Every class is recorded, so you never fall behind
View classes & enroll
Limited seats availableTarget Test Prep
EALiveTeachOnDemandStart anytime
EXECUTIVE ASSESSMENT

Target Test Prep EA OnDemand

Self-paced EA prep. Study on your schedule.

EXECUTIVE ASSESSMENT

with

165+ EA score guarantee
$05-day trial no automatic billing
Schedule
Included
40 hours of live online classes plus six months of access to the complete TTP EA OnDemand course.
  • 165+ EA Score Guarantee
  • 4,100+ Quant, Verbal, and Integrated Reasoning practice questions
  • 400+ hours of in-depth video lessons
  • 3,000+ step-by-step video solutions
View EA class & enroll Start free 5-day trial
Limited cohort · enrollment openTrial includes full course accessTarget Test Prep
GMATOnDemandStart anytime
SELF-PACED MASTERCLASS

Target Test Prep GMAT OnDemand

Complete access from day one. Study on your schedule.

715+ score guarantee
$0to start then $127/mo
  • Personalized study plan and analytics
  • Thousands of lessons and practice questions
Start free 5-day trial
Read 563 reviewsTarget Test Prep

GMATPrep - Urban and Rural Greenhouse

Expert replies
Post new topic Post Reply
Subscribe topic
Previous Topic Next Topic
Master | Next Rank: 500 Posts
Posts: 227
Joined: Thu Aug 14, 2008 10:43 amFollowed by: 1 member
Thanked: 7 times
GMAT Score:650
by California4jx » Tue Nov 25, 2008 11:31 am
couldnt justify the rationale for the right answer. Pls help.

OA: D
You do not have the required permissions to view the files attached to this post.
Top
Join the discussion
Source: — Critical Reasoning |
Master | Next Rank: 500 Posts
Posts: 168
Joined: Thu Nov 13, 2008 4:34 am
Location: Pittsburgh
Thanked: 9 times

by Tryingmybest » Tue Nov 25, 2008 11:41 am
ITS D.

The whole question is to determine how Sulphur dioxide impacts the growth of plants.

If the traffic makes deposits inturn reduces the light . Well light is essential for plant growth. So the whole purpose of the experiment is lost . We are interested in checking whether Sulphur dioxide in Urban area is responsible for reduced Plant growth .

Hope this is helpful.
Top
Join the discussion
Master | Next Rank: 500 Posts
Posts: 377
Joined: Wed Sep 03, 2008 9:30 amFollowed by: 2 members
Thanked: 15 times

by schumi_gmat » Tue Nov 25, 2008 2:37 pm
IMO D.

Arg: how much role sulphur di oxide play in the difference of growth of plants to be proved by the experiment

This can be evaluated in D.
Top
Join the discussion
Master | Next Rank: 500 Posts
Posts: 227
Joined: Thu Aug 14, 2008 10:43 amFollowed by: 1 member
Thanked: 7 times
GMAT Score:650

by California4jx » Tue Nov 25, 2008 2:59 pm
Thanks guys.
Top
Join the discussion
Master | Next Rank: 500 Posts
Posts: 197
Joined: Tue Apr 22, 2014 4:03 am

by nicolette » Fri May 13, 2016 1:31 am
My intuition whispers that it is D
Top
Join the discussion
Master | Next Rank: 500 Posts
Posts: 100
Joined: Tue Aug 05, 2014 3:58 am

by vanessa.m » Fri May 13, 2016 1:34 am
I'm going with D, too. No confidence on my answer. Can anyone tell OA?
Top
Join the discussion