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# The cause of the peculiar columnar growth pattern displayed

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The cause of the peculiar columnar growth pattern displayed [#permalink]

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06 Jun 2008, 22:21
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The cause of the peculiar columnar growth
pattern displayed by junipers growing near
burning underground veins of lignite coal has
never been convincingly explained. Until recently,
the accepted theory posited that the abundance
of carbon monoxide in the local atmosphere
caused the columnar growth. However, a new
theory holds that the cause is the persistent
heat present near these underground fires
which, while not intense enough to inflame the
trees, can nonetheless change their normal
growth pattern.

The existence of which of the following would
provide the strongest support for the new
theory?

(A) A columnar juniper growing in an
atmosphere of intense heat and an
absence of carbon monoxide
(B) A normal juniper growing in an atmosphere
of intense heat and an absence of carbon
monoxide
(C) A columnar juniper growing in an
atmosphere of normal heat and a high
concentration of carbon monoxide
(D) A normal juniper growing in an atmosphere
of intense heat and a high concentration
of carbon monoxide
(E) A columnar juniper growing in an
atmosphere of intense heat and a high
concentration of carbon monoxide
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06 Jun 2008, 22:37
Looks like ' A' as the juniper mentioned in the passage is peculiar and not normal , therefore option B is gone as it says that a normal juniper. In order to refute theory 1 and qualify new theory heat should be immense and carbon absent .To conclude that juniper grows because of heat and not carbon.
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06 Jun 2008, 22:44
neeraj.kaushal wrote:
Looks like ' A' as the juniper mentioned in the passage is peculiar and not normal , therefore option B is gone as it says that a normal juniper. In order to refute theory 1 and qualify new theory heat should be immense and carbon absent .To conclude that juniper grows because of heat and not carbon.

A for me as well
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07 Jun 2008, 04:13
AAAAAAA
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07 Jun 2008, 04:41
i think its A as well
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07 Jun 2008, 08:16
A too...
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07 Jun 2008, 10:39
A for me too...
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08 Jun 2008, 21:41
Looking for columnar junipers and lack of CO.....

A makes sense...
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10 Jun 2008, 00:33
A for me too,

Having a columnar juniper in abosence of C0 will support
Re: CR: columnar growth   [#permalink] 10 Jun 2008, 00:33
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