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Often visible as smog, ozone is formed in the atmosphere from hydrocar

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Re: Often visible as smog, ozone is formed in the atmosphere from hydrocar [#permalink]

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New post 04 Feb 2016, 21:32
option D

"ozone, formed in the atmosphere when"

why is this a sentence fragment ? cant the line "formed in the atmosphere when" be a ed modifier which modifies ozone ?

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Re: Often visible as smog, ozone is formed in the atmosphere from hydrocar [#permalink]

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New post 05 Feb 2016, 01:58
It is precisely because ‘formed in the atmosphere’ is a modifier, D is a fragment. As you may see, the Ozone is subject of the main clause but it lacks an appropriate verb, since ‘formed’, is not a verb but a past participle. Immediately after the modifier, a subordinate clause introduced by ‘when’ starts and the subject of the main clause is left dangling without a verb.
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Re: Often visible as smog, ozone is formed in the atmosphere from hydrocar [#permalink]

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New post 14 Mar 2016, 04:25
Guys, I discarded option 'B' just because it's using 'when' ... I am under impression that 'when' is used only to refer time. Can you please help me understand this?

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Re: Often visible as smog, ozone is formed in the atmosphere from hydrocar [#permalink]

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New post 09 Sep 2016, 12:29
whichscore wrote:
Often visible as smog, ozone is formed in the atmosphere from hydrocarbons and
nitrogen oxides, two major pollutants emitted by automobiles, react with sunlight.
(A) ozone is formed in the atmosphere from
(B) ozone is formed in the atmosphere when
(C) ozone is formed in the atmosphere, and when
(D) ozone, formed in the atmosphere when
(E) ozone, formed in the atmosphere from


In D and E, there is no verb for making a complete sentence.
In C, there is independent clause after comma (,)+and.
the sentence says:
and when hydrocarbons and nitrogen oxides react with sunlight.....what? incomplete sentence.
in A, hydrocarbons and nitrogen oxides is the object of preposition FROM. So, it can not be the subject of verb (REACT). so, A is cross out.
in B, everything is perfectly ok.
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Re: Often visible as smog, ozone is formed in the atmosphere from hydrocar [#permalink]

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New post 25 Aug 2017, 13:56
Sheersh wrote:
Guys, I discarded option 'B' just because it's using 'when' ... I am under impression that 'when' is used only to refer time. Can you please help me understand this?



Hello Sheersh,

I know this is a very old post. Yet I am answering it so that if any one else has the same doubt, can find an answer here. :-)

It is true that generally when is used to present the time of an event. However, in certain sentences, when is used to present condition also.

When A happens, B happens. --> The intended meaning is that A has to happen for B to to take place.

This is the usage of when that we see in this official sentence.

The sentence says that when hydrocarbons and nitrogen oxides react with sunlight, then ozone is formed.

Hope this helps. :-)
Thanks.
Shraddha
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Re: Often visible as smog, ozone is formed in the atmosphere from hydrocar [#permalink]

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New post 18 Sep 2017, 13:38
Often visible as smog, ozone is formed in the atmosphere from hydrocarbons and nitrogen oxides, two major pollutants emitted by automobiles, react with sunlight.

(A) ozone is formed in the atmosphere from
(B) ozone is formed in the atmosphere when
(C) ozone is formed in the atmosphere, and when
(D) ozone , formed in the atmosphere when ==> Creates a fragment
(E) ozone , formed in the atmosphere from ==> Changes the meaning and creates a fragment
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Re: Often visible as smog, ozone is formed in the atmosphere from hydrocar [#permalink]

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New post 19 Sep 2017, 07:32
jimmyjamesdonkey wrote:
Often visible as smog, ozone is formed in the atmosphere from hydrocarbons and nitrogen oxides, two major pollutants emitted by automobiles, react with sunlight.

(A) ozone is formed in the atmosphere from
(B) ozone is formed in the atmosphere when
(C) ozone is formed in the atmosphere, and when
(D) ozone, formed in the atmosphere when
(E) ozone, formed in the atmosphere from


The answer is B
The sentence has condition only then ozone will form .
A is wrong as there is a change in meaning
B Correct
C parallelism error
D fragment
E change in meaning and it is a fragment
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Re: Often visible as smog, ozone is formed in the atmosphere from hydrocar   [#permalink] 19 Sep 2017, 07:32

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Often visible as smog, ozone is formed in the atmosphere from hydrocar

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