Counting the Rings

Tree Rings are Used to Accurately Date Cataclysmic Prehistoric Events
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Hide Show timer Statistics. A tree's age can be determined by counting the annual growth rings in its trunk. Each ring represents one year, and the ring's thickness reveals the relative amount of rainfall that year. Archaeologists successfully used annual rings to determine the relative ages of ancient tombs at Pazyryk. Each tomb was constructed from freshly cut logs, and the tombs builders were constrained by tradition to use only logs from trees growing in the sacred Pazyryk Valley. Which one of the following, if true, contributes most to an explanation of the archaeologists' success in using annual rings to establish the relative ages of the tombs at the Pazyryk site?

A The Pazyryk tombs were all robbed during ancient times, but breakage of the tombs seals allowed the seepage of water, which soon froze permanently, thereby preserving the tombs' remaining artefacts.

Counting Rings: Tree-Ring Dating

B The Pazyryk Valley, surrounded by extremely high mountains, has a distinctive yearly pattern of rainfall, and so trees growing in the Pazyryk Valley have annual rings that are quite distinct from trees growing in nearby valleys. C Each log in the Pazyryk tombs has among its rings a distinctive sequence of twelve annual rings representing six drought years followed by three rainy years and three more drought years.

D The archaeologists determined that the youngest tree used in any of the tombs was 90 years old and that the oldest tree was years old. E All of the Pazyryk tombs contained cultural artefacts that can be dated to roughly years ago. Spoiler: OA. Most Helpful Community Reply. General Discussion. A The Pazyryk tombs were all robbed during ancient times, but breakage of the tombs seals allowed the seepage of water, which soon froze permanently, thereby preserving the tombs' remaining artefacts too far off the point.

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There are many benefits to timing your practice , including:. Your reasoning is not correct. We have subscribed you to Daily Prep Questions via email. MBA Admissions Prep. To extend the maths further, encourage the children to see which two numbers equal 10 and other numbers adding and subtracting rings. Old tree rings telling time and age of trunk.

Question is very difficult ,atleast i felt so. I marked C because thought others are not much relevant and C spoke something about years etc. Option C precisely tells about how the scientists were able to determine the age based on the number of rings. B is another option that talks about changes in rain pattern but nothing about how rings were used.

Schools: ISB ' B seemed to be initial choice for me But was not fully convinced with C ,until read the question again Which one of the following, if true, contributes most to an explanation of the archaeologists' success in using annual rings to establish the relative ages of the tombs at the Pazyryk site? C fulfills this requirement better than B. I marked it B, but now i realize its C I think what kanigmat mentioned "the relative age of Tombs" in the question is the catch here to go for option C.

Oldest will have as many number of continuous droughts. If a log X has 7 drought ones, whereas on the other hand a second one Y has 7 droughts and 2 rainy ones. It will imply the first one is older than the second. A third Z with 7 droughts 2 rain and 2 droughts will still be younger than the first because the first probably did not survive after the 7 droughts.

Answer- option C. Schools: Kelley '20 , ISB ' 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. Want to see all other topics I dig out? Follow me click follow button on profile.

pracphicotti.tk You will receive a summary of all topics I bump in your profile area as well as via email. Print view. Add Notes. Hide Show timer Statistics. A tree's age can be determined by counting the annual growth rings in its trunk. Each ring represents one year, and the ring's thickness reveals the relative amount of rainfall that year. Archaeologists successfully used annual rings to determine the relative ages of ancient tombs at Pazyryk.

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Each tomb was constructed from freshly cut logs, and the tombs builders were constrained by tradition to use only logs from trees growing in the sacred Pazyryk Valley. Which one of the following, if true, contributes most to an explanation of the archaeologists' success in using annual rings to establish the relative ages of the tombs at the Pazyryk site? A The Pazyryk tombs were all robbed during ancient times, but breakage of the tombs seals allowed the seepage of water, which soon froze permanently, thereby preserving the tombs' remaining artefacts. B The Pazyryk Valley, surrounded by extremely high mountains, has a distinctive yearly pattern of rainfall, and so trees growing in the Pazyryk Valley have annual rings that are quite distinct from trees growing in nearby valleys.

C Each log in the Pazyryk tombs has among its rings a distinctive sequence of twelve annual rings representing six drought years followed by three rainy years and three more drought years. D The archaeologists determined that the youngest tree used in any of the tombs was 90 years old and that the oldest tree was years old.

E All of the Pazyryk tombs contained cultural artefacts that can be dated to roughly years ago. Spoiler: OA. Most Helpful Community Reply. General Discussion. A The Pazyryk tombs were all robbed during ancient times, but breakage of the tombs seals allowed the seepage of water, which soon froze permanently, thereby preserving the tombs' remaining artefacts too far off the point.

Question is very difficult ,atleast i felt so. I marked C because thought others are not much relevant and C spoke something about years etc.

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Option C precisely tells about how the scientists were able to determine the age based on the number of rings.