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# Mature white pines intercept almost all the sunlight that

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Senior Manager
Joined: 30 Aug 2003
Posts: 314
Location: BACARDIVILLE
Mature white pines intercept almost all the sunlight that  [#permalink]

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09 Dec 2003, 17:30
1
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Difficulty:

75% (hard)

Question Stats:

45% (02:07) correct 55% (02:33) wrong based on 28 sessions

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Mature white pines intercept almost all the sunlight that shines on them. They leave a deep litter that dries readily, and they grow to prodigious height so that, even when there are large gaps in a stand of such trees, little light reaches the forest floor. For this reason white pines cannot regenerate in their own shade. Thus, when in a dense forest a stand of trees consists of nothing but mature white pines, it is a fair bet that ____.

Which one of the following most logically concludes the argument?

(A) the ages of the trees in the stand do not differ from each other by much more than the length of time it takes a white pine to grow to maturity

(B) the land on which the stand is now growing had been cleared of all trees at the time when the first of the white pines started growing

(C) competition among the trees in the stand for sunlight will soon result in some trees' dying and the stand thus becoming thinner

(D) other species of trees will soon begin to colonize the stand, eventually replacing all of the white pines

(E) any differences in the heights of the trees in the stand are attributable solely to differences in the ages of the trees

Director
Joined: 13 Nov 2003
Posts: 724
Location: Florida
Re: Mature white pines intercept almost all the sunlight that  [#permalink]

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09 Dec 2003, 18:27
author states that '..white pines can't regenerate in their own shade..' so, the growers must have cleared that land before sowing...or whatever.

B

sunniboy,
Senior Manager
Joined: 28 Oct 2003
Posts: 407
Location: 55405
Re: Mature white pines intercept almost all the sunlight that  [#permalink]

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09 Dec 2003, 19:10
A, I reckon.

it says mature white pines intercept almost all the sunlight, so what you cannot have are immature trees-- since they will have no available light. As the question states "white pines cannot regenerate in their own
Hence, the trees must have "grown up" at the same time.
Director
Joined: 13 Nov 2003
Posts: 724
Location: Florida
Re: Mature white pines intercept almost all the sunlight that  [#permalink]

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09 Dec 2003, 20:05
stoolfi wrote:
A, I reckon.

it says mature white pines intercept almost all the sunlight, so what you cannot have are immature trees-- since they will have no available light. As the question states "white pines cannot regenerate in their own
Hence, the trees must have "grown up" at the same time.

well..well, these questions are really messy..
VP
Joined: 03 Feb 2003
Posts: 1344
Re: Mature white pines intercept almost all the sunlight that  [#permalink]

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10 Dec 2003, 00:07
B and E are too strong, using such quantifies as ANY and ALL.
Manager
Joined: 12 Oct 2003
Posts: 193
Location: sydney
Re: Mature white pines intercept almost all the sunlight that  [#permalink]

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10 Dec 2003, 01:45
its C....coz
A and E are out coz nothing is discussed abt age in para. B and D
are out of scope.

my 2 cents...
Intern
Joined: 27 Nov 2003
Posts: 26
Location: Moscow
Re: Mature white pines intercept almost all the sunlight that  [#permalink]

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10 Dec 2003, 04:58
I was thinking about A and B, but now I agree that B sounds too strong
Manager
Joined: 29 Aug 2003
Posts: 179
Location: MI
Re: Mature white pines intercept almost all the sunlight that  [#permalink]

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10 Dec 2003, 09:04
I agree with A.

B is indeed to strong.
Intern
Joined: 05 Aug 2014
Posts: 9
Re: Mature white pines intercept almost all the sunlight that  [#permalink]

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14 Apr 2016, 03:49
I feel A is aanswer. If some expert could throw light on the reasoning it would be a big help.
CR & LSAT Forum Moderator
Status: He came. He saw. He conquered. -- Studying for the LSAT -- Corruptus in Extremis
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Re: Mature white pines intercept almost all the sunlight that  [#permalink]

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26 Nov 2019, 08:08
OA added and bumping for further discussion
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Re: Mature white pines intercept almost all the sunlight that   [#permalink] 26 Nov 2019, 08:08
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