In Swartkans territory, archaeologists discovered charred : GMAT Critical Reasoning (CR)
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# In Swartkans territory, archaeologists discovered charred

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In Swartkans territory, archaeologists discovered charred [#permalink]

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24 Jan 2006, 18:35
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In Swartkans territory, archaeologists discovered charred bone fragments dating back 1 million years. Analysis of the fragments, which came from a variety of animals, showed that they had been heated to temperatures no higher than those produced in experimental campfires made from branches of white stinkwood, the most common tree around Swartkans.
Which of the following, if true, would, together with the information above, provide the best basis for the claim that the charred bone fragments are evidence of the use of fire by early hominids?
(A) The white stinkwood tree is used for building material by the present-day inhabitants of Swartkans.
(B) Forest fires can heat wood to a range of temperatures that occur in campfires.
(C) The bone fragments were fitted together by the archaeologists to form the complete skeletons of several animals.
(D) Apart from the Swartkans discovery, there is reliable evidence that early hominids used fire as many as 500 thousand years ago.
(E) The bone fragments were found in several distinct layers of limestone that contained primitive cutting tools known to have been used by early hominids.
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24 Jan 2006, 20:07
E?

Need to show an evidence to prove that they created the charred bone mess rather than the natural fires. Look here is the limestone mess with bones+cutting tools. So they had used fires.
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24 Jan 2006, 21:24
giddi77 wrote:
E?

Need to show an evidence to prove that they created the charred bone mess rather than the natural fires. Look here is the limestone mess with bones+cutting tools. So they had used fires.

I didnt get your reasoning.. How does limestome+bone proves that they had used fires???
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24 Jan 2006, 21:47
andy_gr8 wrote:
giddi77 wrote:
E?

Need to show an evidence to prove that they created the charred bone mess rather than the natural fires. Look here is the limestone mess with bones+cutting tools. So they had used fires.

I didnt get your reasoning.. How does limestome+bone proves that they had used fires???

The initial part of the CR tells that the bones were "charred" and for that to happen the heat should be <= fire from the wood.
So from E we can infer though loosely but resonably infer that limestones with the charred bone mess and the tools found all together indicates.

Also rest of the choices are not close to supporting either
A - doesn't effect the arg. much
B - weakens
C - So what if you can fit the bones together.
D - We don't have the data for 500k yrs till 1.0million yrs ago
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24 Jan 2006, 21:52
E it is
Forest fires can heat wood to a range of temperatures that occur in campfires.So we need to provide some evidence that charred bone fragments are not product of forest fires.
The bone fragments were found in several distinct layers of limestoneIf it were natural forest fire there must ve been one layer and primitive cutting tools known to have been used by early hominidsAnd this could be an evidence of that hominids actually cooked this animals))
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24 Jan 2006, 22:03
I don't like this question...I still don't understand how E fits in but got it by POE
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24 Jan 2006, 23:49
giddi77 wrote:
andy_gr8 wrote:
giddi77 wrote:
E?

Need to show an evidence to prove that they created the charred bone mess rather than the natural fires. Look here is the limestone mess with bones+cutting tools. So they had used fires.

I didnt get your reasoning.. How does limestome+bone proves that they had used fires???

The initial part of the CR tells that the bones were "charred" and for that to happen the heat should be <= fire from the wood.
So from E we can infer though loosely but resonably infer that limestones with the charred bone mess and the tools found all together indicates.

Also rest of the choices are not close to supporting either
A - doesn't effect the arg. much
B - weakens
C - So what if you can fit the bones together.
D - We don't have the data for 500k yrs till 1.0million yrs ago

Why cant it be B, which is pretty simple and conise...Forest fires have same temp ..So may be these bones r a result of forest fire.
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25 Jan 2006, 01:10
andy_gr8 wrote:
giddi77 wrote:
andy_gr8 wrote:
giddi77 wrote:
E?

Need to show an evidence to prove that they created the charred bone mess rather than the natural fires. Look here is the limestone mess with bones+cutting tools. So they had used fires.

I didnt get your reasoning.. How does limestome+bone proves that they had used fires???

The initial part of the CR tells that the bones were "charred" and for that to happen the heat should be <= fire from the wood.
So from E we can infer though loosely but resonably infer that limestones with the charred bone mess and the tools found all together indicates.

Also rest of the choices are not close to supporting either
A - doesn't effect the arg. much
B - weakens
C - So what if you can fit the bones together.
D - We don't have the data for 500k yrs till 1.0million yrs ago

Why cant it be B, which is pretty simple and conise...Forest fires have same temp ..So may be these bones r a result of forest fire.

B is not supporting, it is infact weakening the argument. If forest fires and campfire can heat to same temprature then the bones were heated due to forest fire and early hominids were not using fire.

I think this is E. E finds another evidence that early hominids were present at the location where bones were found.

All other choices seem out of scope.

Its just a thought. Whats the OA???
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25 Jan 2006, 09:54
Cutting tools used in bringing the stinkwood down. Not a very good reason and not a very good question either according to me.
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25 Jan 2006, 10:04
Andy Gr8 question!!
Please provide us whith OA and if possible OE
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25 Jan 2006, 19:39
Simple logic: There are two ways to eat an animal.

1. Barbaric tear and chew style--->the Tiger (Yuck!)
2. Cut (with a sharp stone object), filet and cook style--->the hominids

(E)
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25 Jan 2006, 20:43
OA is E..
I dont hjave OE guys.. but i guess you guys explained well...I got it wrong
25 Jan 2006, 20:43
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