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# Because natural gas is composed mostly of methane, a simple

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Director
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Because natural gas is composed mostly of methane, a simple [#permalink]

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24 Jun 2007, 13:23
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164.Because natural gas is composed mostly of methane, a simple hydrocarbon, vehicles powered by natural gas emit less of certain pollutants than the burning of gasoline or diesel fuel.
(A) less of certain pollutants than the burning of gasoline or diesel fuel
(B) fewer of certain pollutants than burning gasoline or diesel fuel do
(C) less of certain pollutants than gasoline or diesel fuel
(D) fewer of certain pollutants than does burning gasoline or diesel fuel
(E) less of certain pollutants than those burning gasoline or diesel fuel

I think, each answer choice contains error - I will share it later
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Re: 1000 SC -Natual Gas [#permalink]

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24 Jun 2007, 13:31
164.Because natural gas is composed mostly of methane, a simple hydrocarbon, vehicles powered by natural gas emit less of certain pollutants than the burning of gasoline or diesel fuel.
(A) less of certain pollutants than the burning of gasoline or diesel fuel
less for noncountable, polluntants is countable, therefore wrong!
(B) fewer of certain pollutants than burning gasoline or diesel fuel do
incorrect comparison
(C) less of certain pollutants than gasoline or diesel fuel
less for noncountable, polluntants is countable, therefore wrong!
(D) fewer of certain pollutants than does burning gasoline or diesel fuel
fewer pollutants is correct, correct comparison '...vehicles emit less X than Y or Z does.' Correct answer!
(E) less of certain pollutants than those burning gasoline or diesel fuel
less for noncountable, polluntants is countable, therefore wrong!

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Re: 1000 SC -Natual Gas [#permalink]

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24 Jun 2007, 15:27
sorry this post (my)is redundant

Last edited by seofah on 24 Jun 2007, 15:36, edited 2 times in total.
Director
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Re: 1000 SC -Natual Gas [#permalink]

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24 Jun 2007, 15:34
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First of all, let's sort "less of certain pollutants" out.

fewer pollutants = fewer NUMBER of pollutants. NUMBER is countable
less of certain pollutants = less QUANTITY of certain pollutants. QUANTITY is non-countable
So, B and D are out!

botirvoy wrote:
164.Because natural gas is composed mostly of methane, a simple hydrocarbon, vehicles powered by natural gas emit less of certain pollutants than the burning of gasoline or diesel fuel.
(A) less of certain pollutants than the burning of gasoline or diesel fuel ---> "do those" or equivalent should come before "burning"
(B) fewer of certain pollutants than burning gasoline or diesel fuel do
(C) less of certain pollutants than gasoline or diesel fuel ---> "do those burning" or equivalent should come before "gasoline"

(D) fewer of certain pollutants than does burning gasoline or diesel fuel
(E) less of certain pollutants than those burning gasoline or diesel fuel ---> "do" should come before "those"

According to my analysis, E has the least number of errors.

Anyone disagree with me? Is there anyone who thinks E does not have any error?
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24 Jun 2007, 20:04
E is the answer. Correct comparison between vehicles burning natural gas and those burning petrol or diesel
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25 Jun 2007, 05:05
I would also go for E. The comparison between vehicles is being done.

Also, less of pollutants is correct in my opinion as the pollutants released by both types of vehicles are common to some extent but the quantities are less...

fewer is also right as NG vehicles do not emit NOx.... but themain pollutants in vehicles are CO and CO2.So the comparison is in quantities in my opinion!
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25 Jun 2007, 20:19
It is E.
Vehicles are being compared with "those".
Without those you are comparing vehicles to gas
CEO
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11 Jul 2007, 12:10
I am still confused why we use less of of certain pollutants.

pollutants is countable. 1 pollutant, 2 pollutants, 3 pollutants...etc. pollution is not countable.
there were fewer cars on the road, which has led to less pollution.
cars is countable, pollution is not.

CEO
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11 Jul 2007, 12:19
Also, how do we differentiate between using high and large?
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11 Jul 2007, 12:33
bmwhype2 wrote:
I am still confused why we use less of of certain pollutants.

pollutants is countable. 1 pollutant, 2 pollutants, 3 pollutants...etc. pollution is not countable.
there were fewer cars on the road, which has led to less pollution.
cars is countable, pollution is not.

nevermind. i figured it out.

less is used in cases of fractions or subsets/groups.

fewer pollutants
less of (a group) pollutants

less pollution
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11 Jul 2007, 12:50
bmwhype2 wrote:
less of (a group) pollutants

good way of thinking about it
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11 Aug 2007, 15:57
botirvoy wrote:
bmwhype2 wrote:
less of (a group) pollutants

good way of thinking about it

i retract that

===============
countable = pollutants
uncountable = pollution

we use fewer with countable nouns
there are fewer pollutants in the air.

we do NOT use fewer in this case because CERTAIN pollutants cannot be counted.
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22 Aug 2007, 11:51
Quote:
E) less of certain pollutants than those burning gasoline or diesel fuel

So i go for E

is this logic correct?
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Re: Because natural gas is composed mostly of methane, a simple [#permalink]

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12 Oct 2013, 18:29
seofah wrote:
164.Because natural gas is composed mostly of methane, a simple hydrocarbon, vehicles powered by natural gas emit less of certain pollutants than the burning of gasoline or diesel fuel.
(A) less of certain pollutants than the burning of gasoline or diesel fuel
(B) fewer of certain pollutants than burning gasoline or diesel fuel do
(C) less of certain pollutants than gasoline or diesel fuel
(D) fewer of certain pollutants than does burning gasoline or diesel fuel
(E) less of certain pollutants than those burning gasoline or diesel fuel

I think, each answer choice contains error - I will share it later

OA for this one? I go with E, was to be less because pollutants are uncountable.
Furthermore, we are comparing vehicles here so we need 'those' (vehicles) burning gas or diesel fuel

Hence IMHO answer should be (E)

Let us know!
Thanks
J:)
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Re: Because natural gas is composed mostly of methane, a simple [#permalink]

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16 Jun 2016, 22:50
Hello from the GMAT Club VerbalBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

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Re: Because natural gas is composed mostly of methane, a simple   [#permalink] 16 Jun 2016, 22:50
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