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In Swartkans territory, archaeologists discovered charred

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In Swartkans territory, archaeologists discovered charred [#permalink] New post 12 Jun 2006, 09:11
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In Swartkans territory, archaeologists discovered charred bone fragments dating back one 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 archaelogists 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 500,000 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.

Please explain.

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Re: CR - Swartkans [#permalink] New post 12 Jun 2006, 10:07
I see E.
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 [#permalink] New post 12 Jun 2006, 10:14
D.

The idea of the CR is the use of fire by early humans.
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 [#permalink] New post 12 Jun 2006, 11:19
E it is.

The argument says that bode fragments were heated to temperatures no higher than those produced in experimental campfires made from branches of white stinkwood.

But this could have been done by some other natural fire.

If we can find something that we can relate to early hominids then we can say that early hominids were using fires.

E says that some other tools were also found there and its is proven that early hominds were using these tools.
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 [#permalink] New post 12 Jun 2006, 12:23
Can you explain how
"provide the best basis for the claim that the charred bone fragments are evidence of the use of fire by early hominids?"

is satisfied by

(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.

E just talks about additional tools found in the limestone, nothing about fire.

I think I am missing some subtle point in the CR paragraph.
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 [#permalink] New post 12 Jun 2006, 12:55
haas_mba07 wrote:
Can you explain how
"provide the best basis for the claim that the charred bone fragments are evidence of the use of fire by early hominids?"

is satisfied by

(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.

E just talks about additional tools found in the limestone, nothing about fire.

I think I am missing some subtle point in the CR paragraph.


Ok D says "Apart from the Swartkans discovery, there is reliable evidence that early hominids used fire as many as 500,000 years ago.". This does not relate the bones to the fire so this can not be the answer.

The piece missing is relation of bones to the early huminids and E says that along with bones some tools were also found and relation of these tools is already established to the early huminids. So this means that the bones as well as tools both belongs to early huminids. Hence early huminids consumed these animals using fire.
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 [#permalink] New post 12 Jun 2006, 13:10
I think I see what you are saying, although I am not 100% convinced.

Anyway, b14kumar, can you please post the OA?


ps_dahiya wrote:
haas_mba07 wrote:
Can you explain how
"provide the best basis for the claim that the charred bone fragments are evidence of the use of fire by early hominids?"

is satisfied by

(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.

E just talks about additional tools found in the limestone, nothing about fire.

I think I am missing some subtle point in the CR paragraph.


Ok D says "Apart from the Swartkans discovery, there is reliable evidence that early hominids used fire as many as 500,000 years ago.". This does not relate the bones to the fire so this can not be the answer.

The piece missing is relation of bones to the early huminids and E says that along with bones some tools were also found and relation of these tools is already established to the early huminids. So this means that the bones as well as tools both belongs to early huminids. Hence early huminids consumed these animals using fire.
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 [#permalink] New post 12 Jun 2006, 17:02
'E' it is ...

D states that there is conclusive evidence to show that huminids indeed used fire around 0.5 million years ago.
But what about another 500,000 years before,from that point, when the charred bone fragments were actually formed...

Question looks for a concrete evidence to link huminids with charred bone fragments...
The link is established with the help of tools and bones dating back to the same period..
  [#permalink] 12 Jun 2006, 17:02
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