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# Sunspots, vortices of gas associated with strong

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Manager
Joined: 20 Jun 2017
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Re: Sunspots, vortices of gas associated with strong [#permalink]

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03 Jul 2017, 04:26
(A) are visible as dark spots on the surface of the Sun but have never been sighted on - Correct
(B) are visible as dark spots that never have been sighted on the surface of the Sun - Incorrect- dark spots on sun? or Sunspots? Change in meaning!
(C) appear on the surface of the Sun as dark spots although never sighted at - Incorrect- Subject is needed after although
(D) appear as dark spots on the surface of the Sun, although never having been sighted at - Incorrect- us of 'never having been' changes the meaning as it seems as if this activity is complete
(E) appear as dark spots on the Sun's surface, which have never been sighted on - Incorrect- which refers to surface

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Re: Sunspots, vortices of gas associated with strong [#permalink]

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04 Jul 2017, 02:51
Pratishtha21 wrote:
(A) are visible as dark spots on the surface of the Sun but have never been sighted on - Correct
(B) are visible as dark spots that never have been sighted on the surface of the Sun - Incorrect- dark spots on sun? or Sunspots? Change in meaning!
(C) appear on the surface of the Sun as dark spots although never sighted at - Incorrect- Subject is needed after although
(D) appear as dark spots on the surface of the Sun, although never having been sighted at - Incorrect- us of 'never having been' changes the meaning as it seems as if this activity is complete
(E) appear as dark spots on the Sun's surface, which have never been sighted on - Incorrect- which refers to surface

'Appear as' means 'come up' as in, 'the tiny cracks appear as imperfections pon the surface of table'

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Re: Sunspots, vortices of gas associated with strong [#permalink]

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04 Jul 2017, 08:39
Imo A
(B) are visible as dark spots that never have been sighted on the surface of the Sun

This choice changes meaning and leaves some part of the original sentence

(C) appear on the surface of the Sun as dark spots although never sighted at

C seems to suggest that it is a universal truth by using although never sighted at .
But it is case that they have not been sighted at sun's poles or equator , it can in future .That is what the sentence is trying to convey

(D) appear as dark spots on the surface of the Sun, although never having been sighted at

appear as dark spots is not the correct way to express this thought visible as dark spots is much better and wrong use of having

(E) appear as dark spots on the Sun's surface, which have never been sighted on

Same error as D and use of which is ambiguous.
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Re: Sunspots, vortices of gas associated with strong [#permalink]

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06 Jul 2017, 04:36
Can 'have' and 'are' be parallel? They are brilliant but have never practiced the sport. Seems funny.

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Re: Sunspots, vortices of gas associated with strong [#permalink]

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07 Jul 2017, 05:15
daagh wrote:
This is indeed not a test of //ism; rather it is about meaning and grammar. If you are thinking about the verb //ism here, there is only one // marker, namely, the fanboy conjunction but. The verbs on either sides of the ‘but’ are in present and present perfect tenses, which is acceptable.

(A) are visible as dark spots on the surface of the Sun but have never been sighted on ---- correct choice.
(B) are visible as dark spots that never have been sighted on the surface of the Sun ----- the vortices have been sighted on the surface; Choice says they never have been sighted; total reversal of the original meaning
(C) appear on the surface of the Sun as dark spots although never sighted at ---- although never have been is a fragment; The subordinate conjunction’ although’ requires a subject and verb or minimum a verb’
(D) appear as dark spots on the surface of the Sun, although never having been sighted at – ‘although never having been sighted at’ is not a sub-clause; same problem as in C
(E) appear as dark spots on the Sun's surface, which have never been sighted on – which flouts the relative pronoun touch rule

A is the choice

Sir,

Here are some findings on although(Courtesy to the great Ron..)

1. If it is placed in the beginning of the sentence, then ‘although’ can be followed by either a clause or a modifier.

Example: Although still continuing elsewhere, polio has been eradicated in the United States and could be brought into the country by visitors.
Although eradicated in the United States, polio continues elsewhere and could be

2. If 'although' is placed in the middle of a sentence, then it can only be a modifier and never a clause
Example: Polio, although eradicated in the United States, it still continues elsewhere and can be

3. If the ‘although’ is placed in the end portion, then it can only be a clause and never a modifier.
Ex: (imaginary); polio continues elsewhere and could be brought into the country by visitors, although it was eradicated in the United States

For option C in the following question,It is rule no #3

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Re: Sunspots, vortices of gas associated with strong [#permalink]

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30 Jul 2017, 01:02
Hello GMATNinja - I solved this question for the second time and unfortunately got it wrong both the times. Your detailed analysis on this question would be highly appreciated.
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Re: Sunspots, vortices of gas associated with strong [#permalink]

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31 Jul 2017, 12:44
Thanks abhimahna for the detailed post!

Along with the points that you mentioned, the usage of "although" also has a major role to play.

"Although" normally introduces a subordinate clause, just as "while" does. This means we will need a subject and a verb in the sentence containing "Although".

So, for answer choice C, which I selected, we are missing a clear subject and as you mentioned the verb "sighted" in this case, the verb "Sighted" is considered incomplete as it should also have supporting verb to make clear sense out of it.

Thanks again!
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"Nothing in this world can take the place of persistence. Talent will not: nothing is more common than unsuccessful men with talent. Genius will not; unrewarded genius is almost a proverb. Education will not: the world is full of educated derelicts. Persistence and determination alone are omnipotent."

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Re: Sunspots, vortices of gas associated with strong [#permalink]

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31 Jul 2017, 22:43
ydmuley wrote:
Thanks abhimahna for the detailed post!

Along with the points that you mentioned, the usage of "although" also has a major role to play.

"Although" normally introduces a subordinate clause, just as "while" does. This means we will need a subject and a verb in the sentence containing "Although".

So, for answer choice C, which I selected, we are missing a clear subject and as you mentioned the verb "sighted" in this case, the verb "Sighted" is considered incomplete as it should also have supporting verb to make clear sense out of it.

Thanks again!

Yes, that's true. We can also reject C for the reason we rejected D.

I didn't look at it because I had another solid reason to reject C.

But your reasoning is also correct.
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Re: Sunspots, vortices of gas associated with strong [#permalink]

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16 Nov 2017, 10:35
Hello Expert,

In the above question why is option C incorrect? Option C uses simple tense in order to communicate a fact/general information. Additionally, the contrast is also highlighted with the use of the word 'although'. Awaiting your response. Thanking you in advance.

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Re: Sunspots, vortices of gas associated with strong [#permalink]

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16 Nov 2017, 10:46
Hello Expert,

In the above question why is option C incorrect? Option C uses simple tense in order to communicate a fact/general information. Additionally, the contrast is also highlighted with the use of the word 'although'. Awaiting your response. Thanking you in advance.

Could you please go through the explanation I have given here : https://gmatclub.com/forum/sunspots-vor ... l#p1897965

Let me know if you have more doubts.

Happy learning
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Sunspots, vortices of gas associated with strong [#permalink]

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17 Nov 2017, 03:49
skim wrote:
Sunspots, vortices of gas associated with strong electromagnetic activity, are visible as dark spots on the surface of the Sun but have never been sighted on the Sun’s poles or equator.

(A) are visible as dark spots on the surface of the Sun but have never been sighted on
(B) are visible as dark spots that never have been sighted on the surface of the Sun
(C) appear on the surface of the Sun as dark spots although never sighted at
(D) appear as dark spots on the surface of the Sun, although never having been sighted at
(E) appear as dark spots on the Sun's surface, which have never been sighted on

Let me try my hands on this one.

INTENDED MEANING --
Sunspots are the vortices of gas associated with the strong electromagnetic activity. These sunspots are visible as dark spots on the surface of the sun but these sunspots are till date never sighted on the sun's poles or equator.

Quote:
(A) are visible as dark spots on the surface of the Sun but have never been sighted on

The intended meaning is perfectly clear. Correct!
Plural verbs “are” and “have never been sighted” agree in number and make sense with the plural Subject “Sunspots”. The verbs are both logically and gramatically parallel.

Quote:
(B) are visible as dark spots that never have been sighted on the surface of the Sun

There are overall 4 errors in this choice,
1. The VERB CONSTRUCTION -- "never have been sighted" is INCORRECT. (Note : Here, never is an adverb). The correct construction is -- "have never been sighted", which is not used in this choice though.
2. MEANING ERROR -- If the dark spots are never sighted on the surface of the sun, then how are these sunspots visible as dark spots. Therefore, the meaning implied in the current form of this option is NON-SENSICAL. Also, as per the intended meaning it was that those sunspots are never sighted at the sun's poles or equator but not the sun's surface.
3. There is NO CONTRAST MARKER (eg, but) in this choice, thus the intended contrast is lost in this choice.
4. The sentence construction is even awkward for this option choice, just notice at the last part of this choice and try to connect it with the non-underlined part of the sentence, it will be as follows,
Sunspots are visible as dark spots that never have been sighted on the surface of the Sun the Sun’s poles or equator. This construction is ungrammatical.

Quote:
(C) appear on the surface of the Sun as dark spots although never sighted at

This option choice is NOT as clear as option A. Also,
This option choice violates parallelism because the verb “appear” is not parallel to the adjective “sighted”. "sighted" is a VERB-ed modifier here, as the action of sighting is not performed by the sunspots themselves. INCORRECT.

Quote:
(D) appear as dark spots on the surface of the Sun, although never having been sighted at

The structure, "never having been" is incorrect. The correct structure is -- "having + never + been".
Also, the usage of "HAVING + Verb-ED" is incorrect in this choice. HAVING + VERBed is used to denote the previous of the two causally related actions but there is no need of such logical sequencing as per the intended meaning of the sentence. INCORRECT.

Quote:
(E) appear as dark spots on the Sun's surface, which have never been sighted on

"Sun’s surface” has never been sighted is not what the sentence wants to convey. It’s the Sunspots that have never been sighted on the Sun’s surface. So the placement of clause “which have…” makes this choice incorrect. Also, there is NO CONTRAST MARKER present to show the intended contrast. INCORRECT.

NOTE : The usage of "although" is NOT wrong either in choice C or D. Its correct!

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Sunspots, vortices of gas associated with strong   [#permalink] 17 Nov 2017, 03:49

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