Last visit was: 19 Nov 2025, 16:09 It is currently 19 Nov 2025, 16:09
Home
GMAT
Messages
Tests
Schools
Events
Rewards
Chat
My Profile
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.
Go to My Error Log Learn more
Close
Request Expert Reply
Confirm Cancel
Back to Forum
Create Topic
User avatar
aragonn
User avatar
Retired Moderator
Joined: 23 Sep 2015
Last visit: 30 Sep 2019
Posts: 1,230
Own Kudos:
5,890
 [26]
Given Kudos: 416
Products:
My Reviews
Posts: 1,230
Kudos: 5,890
 [26]
In his upcoming lecture in Prague, the tenured professor plans to 19 Nov 2018, 03:47
4
Kudos
Add Kudos
22
Bookmarks
Bookmark this Post
00:00
Start Timer
Pause Timer
Resume Timer
Show Answer
Hide
Show
History
B
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!

Difficulty:

65% (hard)

Question Stats:

46% (01:26) correct 54% (01:35) wrong based on 930 sessions

History

Date
Time
Result
Not Attempted Yet
In his upcoming lecture in Prague, the tenured professor plans to speak for the damaging effects of melting ice caps and depleting water sources and oxygen levels, all of which are undeniable signs of global warming.

A. In his upcoming lecture in Prague, the tenured professor plans to speak for the damaging effects of melting ice caps and depleting water sources and oxygen levels,

B. In his upcoming lecture in Prague, the tenured professor plans to speak on the damaging effects of melting ice caps, depleting water sources and oxygen levels,

C. In his upcoming lecture in Prague, the tenured professor plans to speak on the damaging effects of melting ice caps as well as depleting water sources and oxygen levels,

D. Damaging effects of melting ice caps are what the tenured professor speaks on in his upcoming lecture in Prague and also depleting water sources and oxygen levels,

E. The damaging effects of melting ice caps are what the tenured professor speaks on in his upcoming lecture in Prague, as well as depleting water sources and oxygen levels,
ShowHide Answer
Official Answer
B
User avatar
dave13
User avatar
Joined: 09 Mar 2016
Last visit: 12 Aug 2025
Posts: 1,108
Own Kudos:
1,113
Given Kudos: 3,851
Posts: 1,108
Kudos: 1,113
In his upcoming lecture in Prague, the tenured professor plans to 19 Nov 2018, 04:07
Kudos
Add Kudos
Bookmarks
Bookmark this Post
A. In his upcoming lecture in Prague, the tenured professor plans to speak for the damaging effects of melting ice caps and depleting water sources and oxygen levels,

B. In his upcoming lecture in Prague, the tenured professor plans to speak on the damaging effects of melting ice caps, depleting water sources and oxygen levels, :)

C. In his upcoming lecture in Prague, the tenured professor plans to speak on the damaging effects of melting ice caps as well as depleting water sources and oxygen levels,

D. Damaging effects of melting ice caps are what the tenured professor speaks on in his upcoming lecture in Prague and also depleting water sources and oxygen levels,

E. The damaging effects of melting ice caps are what the tenured professor speaks on in his upcoming lecture in Prague, as well as depleting water sources and oxygen levels :lol:


IMO: B :grin:
avatar
iPrasad
avatar
Joined: 11 May 2018
Last visit: 30 Jun 2022
Posts: 25
Own Kudos:
107
 [1]
Given Kudos: 132
Location: India
Schools: IE Jan21 Intake (A) Schulich(Jan) '22 (A)
Schools: IE Jan21 Intake (A) Schulich(Jan) '22 (A)
Posts: 25
Kudos: 107
 [1]
In his upcoming lecture in Prague, the tenured professor plans to 19 Nov 2018, 12:20
Kudos
Add Kudos
Bookmarks
Bookmark this Post
IMO - C

A. In his upcoming lecture in Prague, the tenured professor plans to speak for the damaging effects of melting ice caps and depleting water sources and oxygen levels, - to speak on is better WRONG

B. In his upcoming lecture in Prague, the tenured professor plans to speak on the damaging effects of melting ice caps, depleting water sources and oxygen levels, - Not parallel, WRONG

C. In his upcoming lecture in Prague, the tenured professor plans to speak on the damaging effects of melting ice caps as well as depleting water sources and oxygen levels, - Parallel - 'melting ____ as well as depleting ____' & 'water sources and oxygen levels' CORRECT

D. Damaging effects of melting ice caps are what the tenured professor speaks on in his upcoming lecture in Prague and also depleting water sources and oxygen levels,

E. The damaging effects of melting ice caps are what the tenured professor speaks on in his upcoming lecture in Prague, as well as depleting water sources and oxygen levels,
User avatar
aragonn
User avatar
Retired Moderator
Joined: 23 Sep 2015
Last visit: 30 Sep 2019
Posts: 1,230
Own Kudos:
5,890
 [1]
Given Kudos: 416
Products:
My Reviews
Posts: 1,230
Kudos: 5,890
 [1]
In his upcoming lecture in Prague, the tenured professor plans to 20 Nov 2018, 05:34
1
Kudos
Add Kudos
Bookmarks
Bookmark this Post
aragonn
In his upcoming lecture in Prague, the tenured professor plans to speak for the damaging effects of melting ice caps and depleting water sources and oxygen levels, all of which are undeniable signs of global warming.

A. In his upcoming lecture in Prague, the tenured professor plans to speak for the damaging effects of melting ice caps and depleting water sources and oxygen levels,

B. In his upcoming lecture in Prague, the tenured professor plans to speak on the damaging effects of melting ice caps, depleting water sources and oxygen levels,

C. In his upcoming lecture in Prague, the tenured professor plans to speak on the damaging effects of melting ice caps as well as depleting water sources and oxygen levels,

D. Damaging effects of melting ice caps are what the tenured professor speaks on in his upcoming lecture in Prague and also depleting water sources and oxygen levels,

E. The damaging effects of melting ice caps are what the tenured professor speaks on in his upcoming lecture in Prague, as well as depleting water sources and oxygen levels,
Show more

Official Explanation:


it's not clear how the sentence should be corrected. The sentence is too long and complex to try and correct the original sentence, so we will have to use the answers. (D) and (E) use the present tense speaks when future tense is required. The phrase as well as in answer (C) is unnecessary, which leaves us with (A) and (B). In (A) for is the wrong preposition to follow to speak, as the professor is not speaking on behalf of someone or for the advocacy of something, but is speaking about something; therefore, the correct preposition is on, which means (A) is incorrect. (B) uses the correct parallel structure.
User avatar
KanishkM
User avatar
Joined: 09 Mar 2018
Last visit: 18 Dec 2021
Posts: 759
Own Kudos:
503
 [1]
Given Kudos: 123
Location: India
Schools: DeGroote'21 Desautels '21 NUS '21
Schools: DeGroote'21 Desautels '21 NUS '21
Posts: 759
Kudos: 503
 [1]
In his upcoming lecture in Prague, the tenured professor plans to 20 Jan 2019, 08:33
1
Kudos
Add Kudos
Bookmarks
Bookmark this Post
aragonn
In his upcoming lecture in Prague, the tenured professor plans to speak for the damaging effects of melting ice caps and depleting water sources and oxygen levels, all of which are undeniable signs of global warming.

A. In his upcoming lecture in Prague, the tenured professor plans to speak for the damaging effects of melting ice caps and depleting water sources and oxygen levels,

B. In his upcoming lecture in Prague, the tenured professor plans to speak on the damaging effects of melting ice caps, depleting water sources and oxygen levels,

C. In his upcoming lecture in Prague, the tenured professor plans to speak on the damaging effects of melting ice caps as well as depleting water sources and oxygen levels,

D. Damaging effects of melting ice caps are what the tenured professor speaks on in his upcoming lecture in Prague and also depleting water sources and oxygen levels,

E. The damaging effects of melting ice caps are what the tenured professor speaks on in his upcoming lecture in Prague, as well as depleting water sources and oxygen levels,
Show more

A. In his upcoming lecture in Prague, the tenured professor plans to speak for the damaging effects of melting ice caps and depleting water sources and oxygen levels,
plans to speak for - you dont plan to speak for, rather you will plan to speak on something ->out

B. In his upcoming lecture in Prague, the tenured professor plans to speak on the damaging effects of melting ice caps, depleting water sources and oxygen levels,
Correct Answer

C. In his upcoming lecture in Prague, the tenured professor plans to speak on the damaging effects of melting ice caps as well as depleting water sources and oxygen levels,
as well as -> is not used to show parallelism. -> Out

D. Damaging effects of melting ice caps are what the tenured professor speaks on in his upcoming lecture in Prague and also depleting water sources and oxygen levels,
and also redundant -> Out

E. The damaging effects of melting ice caps are what the tenured professor speaks on in his upcoming lecture in Prague, as well as depleting water sources and oxygen levels,
as well as -> is not used to show parallelism -> Out
User avatar
Ariel4Ighuma
User avatar
Joined: 25 Jan 2023
Last visit: 16 Oct 2023
Posts: 19
Own Kudos:
7
Given Kudos: 321
Location: Cameroon
Schools: McCombs '25 (A) McDonough '25 (A)
GMAT 1: 640 Q44 V34
GRE 1: Q161 V161
GPA: 3.04
Products:
My Reviews
Schools: McCombs '25 (A) McDonough '25 (A)
GMAT 1: 640 Q44 V34
GRE 1: Q161 V161
Posts: 19
Kudos: 7
In his upcoming lecture in Prague, the tenured professor plans to 26 Apr 2023, 00:35
Kudos
Add Kudos
Bookmarks
Bookmark this Post
aragonn
In his upcoming lecture in Prague, the tenured professor plans to speak for the damaging effects of melting ice caps and depleting water sources and oxygen levels, all of which are undeniable signs of global warming.

A. In his upcoming lecture in Prague, the tenured professor plans to speak for the damaging effects of melting ice caps and depleting water sources and oxygen levels,

B. In his upcoming lecture in Prague, the tenured professor plans to speak on the damaging effects of melting ice caps, depleting water sources and oxygen levels,

C. In his upcoming lecture in Prague, the tenured professor plans to speak on the damaging effects of melting ice caps as well as depleting water sources and oxygen levels,

D. Damaging effects of melting ice caps are what the tenured professor speaks on in his upcoming lecture in Prague and also depleting water sources and oxygen levels,

E. The damaging effects of melting ice caps are what the tenured professor speaks on in his upcoming lecture in Prague, as well as depleting water sources and oxygen levels,
Show more

I don't know whether this is an acceptable GMAT question. If depleting is a modifier in this context, then I think there should be no comma before "depleting" else we distort the meaning of the sentence (implying that the professor is the one depleting water sources and oxygen levels).
User avatar
blablabla1997
User avatar
Joined: 05 Apr 2023
Last visit: 22 Jun 2023
Posts: 12
Own Kudos:
1
 [1]
Given Kudos: 5
Location: Indonesia
GMAT 1: 680 Q51 V30
GMAT 1: 680 Q51 V30
Posts: 12
Kudos: 1
 [1]
In his upcoming lecture in Prague, the tenured professor plans to 08 May 2023, 06:43
1
Kudos
Add Kudos
Bookmarks
Bookmark this Post
One of the thing make me chose C is because there is no comma (,) before AND in the B option making it weird as a sentence, can anybody help?
User avatar
Abhishek009
User avatar
Board of Directors
Joined: 11 Jun 2011
Last visit: 18 Jul 2025
Posts: 5,934
Own Kudos:
5,328
Given Kudos: 463
Status:QA & VA Forum Moderator
Location: India
GPA: 3.5
WE:Business Development (Commercial Banking)
Posts: 5,934
Kudos: 5,328
In his upcoming lecture in Prague, the tenured professor plans to 08 May 2023, 09:09
Kudos
Add Kudos
Bookmarks
Bookmark this Post
aragonn
In his upcoming lecture in Prague, the tenured professor plans to speak for the damaging effects of melting ice caps and depleting water sources and oxygen levels, all of which are undeniable signs of global warming.

A. In his upcoming lecture in Prague, the tenured professor plans to speak for the damaging effects of melting ice caps and depleting water sources and oxygen levels,

B. In his upcoming lecture in Prague, the tenured professor plans to speak on the damaging effects of melting ice caps, depleting water sources and oxygen levels,

C. In his upcoming lecture in Prague, the tenured professor plans to speak on the damaging effects of melting ice caps as well as depleting water sources and oxygen levels,

D. Damaging effects of melting ice caps are what the tenured professor speaks on in his upcoming lecture in Prague and also depleting water sources and oxygen levels,

E. The damaging effects of melting ice caps are what the tenured professor speaks on in his upcoming lecture in Prague, as well as depleting water sources and oxygen levels,
Show more

Speak for - Representing (Team, Organization etc)
Speak on - To give a lecture

In his upcoming lecture in Prague, the tenured professor plans to speak on
    the damaging effects of melting ice caps,
    depleting water sources and oxygen levels,
all of which are undeniable signs of global warming.

Correct Answer must be (B)
User avatar
Ariel4Ighuma
User avatar
Joined: 25 Jan 2023
Last visit: 16 Oct 2023
Posts: 19
Own Kudos:
7
Given Kudos: 321
Location: Cameroon
Schools: McCombs '25 (A) McDonough '25 (A)
GMAT 1: 640 Q44 V34
GRE 1: Q161 V161
GPA: 3.04
Products:
My Reviews
Schools: McCombs '25 (A) McDonough '25 (A)
GMAT 1: 640 Q44 V34
GRE 1: Q161 V161
Posts: 19
Kudos: 7
In his upcoming lecture in Prague, the tenured professor plans to 08 May 2023, 12:00
Kudos
Add Kudos
Bookmarks
Bookmark this Post
blablabla1997
One of the thing make me chose C is because there is no comma (,) before AND in the B option making it weird as a sentence, can anybody help?
Show more

I think you're right. Going through the question once more, I realized the absence of the comma makes the intended list of items of discussion difficult to identify.
User avatar
milanrajb
User avatar
Joined: 17 Apr 2022
Last visit: 14 Dec 2024
Posts: 89
Own Kudos:
40
Given Kudos: 38
Posts: 89
Kudos: 40
In his upcoming lecture in Prague, the tenured professor plans to 13 May 2023, 02:16
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Hi Everyone, I will request to clarify a query.

I didn't do with B because I couldn't figure the parallel teams.

B. In his upcoming lecture in Prague, the tenured professor plans to speak on the damaging effects of melting ice caps, depleting water sources and oxygen levels,

Here I understand the three parts: damaging effects of melting ice caps, depleting water sources and oxygen levels, are meaning wise aren't parallel to each other. Instead of oxygen levels, if we would have used depleting oxygen levels, then I guess it would have been parallel.

Can someone help me understand that where I went wrong?
Moderators:
GMATNinja
GMAT Club Verbal Expert
7443 posts
GMATNinjaTwo
GMAT Club Verbal Expert
231 posts
miag
189 posts