The gyrfalcon has survived a close brush with extinction; : GMAT Sentence Correction (SC)
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The gyrfalcon has survived a close brush with extinction;

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The gyrfalcon has survived a close brush with extinction; [#permalink]

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14 Dec 2011, 14:41
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The gyrfalcon has survived a close brush with extinction; its numbers are now five times greater than when the use of DDT was sharply restricted in the 1970s.
A)extinction; its numbers are now five times greater than
B)extinction; its numbers are now five times more than
C)extinction; their numbers now fivefold what they were

[Reveal] Spoiler: OA

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15 Dec 2011, 02:13
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The gyrfalcon has survived a close brush with extinction; its numbers are now five times greater than when the use of DDT was sharply restricted in the 1970s.
A)extinction; its numbers are now five times greater than
B)extinction; its numbers are now five times more than
C)extinction; their numbers now fivefold what they were

"their" in choice D has no antecedent.

Difference between "greater" and "more".

When you want to said 8 > 5. The ">" express greater than. The number can only greater than, not more than.

If you want to use more than Set Q (0, 0 , 0) and Set P (0, 0). We can say that Set Q have more 0 than set P. If you want to use more than in this sentence, it should be The current herb of gyrfalcon has more individuals than the past herb.
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15 Dec 2011, 06:41
Thanks tuanquang. I think I got a hang of what you mean.

Still, I could use any more explanations that others may have.
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15 Dec 2011, 08:52
Thanks tuanquang. I think I got a hang of what you mean.

Still, I could use any more explanations that others may have.

That's great. I'm willing to see you elaborate more explanation.
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16 Dec 2011, 21:19
Greater is better than More.
If one said 'the numbers were more', it would somehow mean that the gyrfalcon 'had more numbers' than before, which doesn't make sense.
'the numbers are greater' makes sense: the numbers have increased.
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10 Jan 2012, 03:41
+1 for A.Greater is used to compare the past and present,more has no comparison,it is an addition only.
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10 Jan 2012, 06:45
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Hi,
At e-gmat, we follow a three-step process to solve any SC question. We first understand the meaning of the sentence, then we evaluate the errors in the sentence and then we run the Process of Elimination to get to the correct answer. So let us begin.

• The gyrfalcon is an Arctic bird of prey.
• It had gone very close to extinction but succeeded in surviving.
• The number of this bird is five times greater now than in the early 70s when the use of DDT was highly restricted.

In the next step, we divide the sentence in clauses as follows:
The gyrfalcon, an Arctic bird of prey, has survived a close brush with extinction; (Subject=The gyrfalcon, Verb=has survived)
its numbers are now five times greater than (S=its numbers, V=are)
o when the use of DDT was sharply restricted in the early 1970s. (S=the use of DDT, V=was restricted)

ERROR ANALYSIS:

• Possessive pronoun correctly refers to “the gyrfalcon”.
• Plural subject “its numbers” agrees in number with plural verb “are”.
• The comparison between the numbers of the bird at the time when pesticides were restricted and now when it is not is correct.
• No errors.

POE:

A. Correct as is.

B. Wrong. When comparing, the quantity word for “numbers” is “greater than”, not “more than”. For example:
i. The number of apples is greater than that of oranges.
ii. There are more apples than oranges.

C. Wrong. Plural pronouns “their” & “they” do not agree in number with its singular antecedent “gyrfalcon”.

D. Wrong.
a. Plural pronoun “they” does not agree in number with its singular antecedent “gyrfalcon”.
b. Phrase “now with …” seems to modify extinction that is non-sensical.

E. Wrong. Same modifier error as in D.

1. Use correct quantity words for entities being compared.
2. All the pronouns must agree in number with their antecedents.
3. Modifiers must be placed and worded correctly to convey the intended meaning of the sentence.

The concepts tested in this question has been covered in e-gmat concepts:

1. Level 1 – Pronouns (This concept is covered in Preview Level 1 Concepts which can be accessed for free. So register and learn the concept.)
2. Level 1 – Correcting Modifier errors
3. Level 2 – Idioms - Comparisons

The detailed video solution for this question is available in our SC course OG Verbal 2 Solutions which is available to e-gmat customers.

Thanks.

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11 Jan 2012, 09:43
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For countable and enumerative nouns, we use ‘greater than’; for volumetric things, we use ‘more than’. Here the term ‘numbers’ is clearly countable because it is in plural. Therefore, the choice will go with A per se, but with a qualification.

Although a population at a given time can only be one number, the use of numbers in the text looks a bit dubious. But still to be pragmatic about it, we have to accept the use of ‘numbers’ as logical; after all the population count is over a long period of a decade and there is no way the count could have been limited to a single number all along the long stretch

Chocie C is awful; the clause after semicolon is just a fragment without a verb. Secondly, the original intends to say that the final count is actually six folds now while C changes the meaning to just fivefold. That is the significance of the term greater than.

In the original choice GPREP version, the third choice is punctuated not by a semicolon but by a comma and followed by a modifier. May be an unintended typo, I guess.
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Re: The gyrfalcon has survived a close brush with extinction; [#permalink]

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07 Nov 2013, 07:38
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Re: The gyrfalcon has survived a close brush with extinction; [#permalink]

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13 Jan 2015, 13:53
Hello from the GMAT Club VerbalBot!

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Re: The gyrfalcon has survived a close brush with extinction; [#permalink]

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20 Jan 2017, 23:15
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: The gyrfalcon has survived a close brush with extinction;   [#permalink] 20 Jan 2017, 23:15
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