Those skeptical of the extent of global warming argue that

Question

Those skeptical of the extent of global warming argue that short-term temperature data are an inadequate means of predicting long-term trends and point out that the scientific community remains divided  on whether significant warming will occur and what impact will it have if it does .

A. on whether significant warming will occur and what impact will it have if it does.

B. on whether warming that occurs will be significant and the impact it would have.

C. as to whether significant warming will occur or the impact it would have if it did.

D. over whether there will be significant warming or the impact it will have.

E. over whether significant warming will occur and what impact it would have

x2suresh · Answer

we need "and' instead of "or"
C,D -- out
"whether warming that occurs .." not || "the impact it would have"
B - out

between A and E.
had dificulty choosing between A and E
Finally chose E

scthakur · Answer

I will go for A. I think "divided on" is a correct idiom (not sure though). Moreover, past tense "would" is not required as it is in E.

x2suresh · Answer

IMO,
"divded on"/"dived over" both are correct idioms.

I chose E because..
whether significant warming will occur and what impact would have --> 
conveys the following meaning..
whether siginicant warming will occur or not.? "if occured.. what impact it would have?"

Also in A.. 
"what impact will it have if it does" --> sounds little akward.

"what impact it will have if it does" --> sound better.

What is OA? 
What is Source?
What is OE if available

scthakur · Answer

I think the conditional statement in option A has the correct structure as below.

"if + present tense + then (optional) + future tense".

past "would" in option E is not required.

Awaiting OA and OE.

x2suresh · Answer

thats why I had tough time choosing between A and E.

if it has "what impact it will have if it does" --> then definitely I would have gone for A.

If I fly to New York, I will visit Empire State building. --> correct
If I fly to New York, will I visit Empire State building. --> is this sounds good?
are you asking question..

That's the only reason I rejected A..

llcooljayce · Answer

I would say E

Idiom, it is 'divided over' not 'divided on'

scthakur · Answer

Thanks for the clarification. I think, this clearly makes E a correct option.

selvae · Answer

Agree with E

Agrees with subjunctive, if significant warming will occur then what impact it would have

depends on/over can be used as idiom.

A - has redundancy issue. 
( whether significant warming will occu r and if  it does .)

x2suresh · Answer

I don't agree with that:
both are correct idioms.

DIVIDED ON: (Below sentences are from NY TIMES)
----------- 
In the United States, media specialists are  divided on  whether the government could or should help the efforts.

Arab leaders remain cripplingly  divided on  how to respond to the crisis

I made this decision because Jeff and I were really  divided on  the future of this program and what we wanted from the program

DIVIDED OVER:(Below sentences are from NY TIMES)
-------------
“Republicans are  divided over  how aggressively to take on Obama.

Opinions will surely be  divided over  the exotically ornate costumes designed expressly for Ms. Fleming by Christian Lacroix

Below is from Merriam-Webster Dictionary
divided
Function:
adjective 
Meaning:
1   : separated by different opinions : in a state of disagreement ▪ Experts are sharply   divided on/over   the issue. ▪ The issue has created a deeply divided nation.
2 : given to two or more people or things rather than to just one person or thing ▪ She feels like she only gets her mother's divided attention. ▪ He has divided loyalties.

chicagocubsrule · Answer

A is also a bit wordy and that's why I chose E.

IanStewart · Answer

The answer should be E). A) shouldn't be right:

"on whether significant warming will occur and what impact will it have if it does."

The end of the sentence is phrased as a question, with the verb ('will') before the subject ('it'). For A) to have any chance of being correct, it would need to read "and what impact it will have if it does". A) has other problems as well, but this one is the clincher for me.

study · Answer

I do not have the OA on this one. Only had the question!

llcooljayce · Answer

Are you freaking kidding me? How does this help ANYONE?

IanStewart · Answer

Google is helpful if you need an OA - just searched, and the OA is E. The question is from GMATPrep.

bigfernhead · Answer

Now now, found a good explanation here: https://www.manhattangmat.com/forums/th ... t1938.html The OA is E.

Those skeptical of the extent of global warming argue that

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