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04 Oct 2025, 21:52
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The ancient cliff dwellings of the ancient Puebloans in the southwestern United States may have been constructed much more quickly than within the 150-year span previously supposed by scientists, significantly altering researchers' understanding of societal development in Native American cultures. Pueblo oral histories hold that during the mid-13th century, a tribal leader named White Shell Woman organized a coordinated movement of communities into cliff dwellings for protection and resource management. But archaeologists had been unable to scientifically confirm this rapid transition, in part because of limitations with traditional pottery dating methods.
Recently, researchers, knowing that tree rings form annual growth patterns, applied dendrochronology to wooden support beams collected from various cliff dwelling sites. The technique measures both early and late wood formation within each ring, providing precise annual markers of when trees were harvested for construction. Dates from the samples that best reflect cutting time—those with bark still present—ranged from 1248 to 1265 CE, suggesting there was intensive cliff dwelling construction during that period. Because, the researchers argue, these structures served as centers for food storage and resource distribution, the rapid construction likely indicates a significant shift in community organization.
The events described by Pueblo oral histories agree with these new dates, and the cliff dwellings provide tangible archaeological evidence that this sociopolitical shift happened within a single generation of Ancestral Puebloans. This compressed timeline suggests that environmental pressures and increased regional conflict accelerated the need for protective structures far more quickly than previously thought.
Which of the following best summarizes the central idea of the passage?
A. Scientific evidence suggests that a series of structures were constructed rapidly over a short period of time.
B. Conflicting accounts between earlier scientific data and local traditions have led researchers to new scientific methods.
C. New scientific methods have provided evidence that supports historical accounts of significant social and structural changes occurring rapidly in a particular society.
D. Researchers have found that centralized planning efforts were responsible for the development of certain ancient structures.
E. Archaeological studies indicate that social and environmental changes had great influence on the construction patterns of several ancient communities.
Recently, researchers, knowing that tree rings form annual growth patterns, applied dendrochronology to wooden support beams collected from various cliff dwelling sites. The technique measures both early and late wood formation within each ring, providing precise annual markers of when trees were harvested for construction. Dates from the samples that best reflect cutting time—those with bark still present—ranged from 1248 to 1265 CE, suggesting there was intensive cliff dwelling construction during that period. Because, the researchers argue, these structures served as centers for food storage and resource distribution, the rapid construction likely indicates a significant shift in community organization.
The events described by Pueblo oral histories agree with these new dates, and the cliff dwellings provide tangible archaeological evidence that this sociopolitical shift happened within a single generation of Ancestral Puebloans. This compressed timeline suggests that environmental pressures and increased regional conflict accelerated the need for protective structures far more quickly than previously thought.
Which of the following best summarizes the central idea of the passage?
A. Scientific evidence suggests that a series of structures were constructed rapidly over a short period of time.
B. Conflicting accounts between earlier scientific data and local traditions have led researchers to new scientific methods.
C. New scientific methods have provided evidence that supports historical accounts of significant social and structural changes occurring rapidly in a particular society.
D. Researchers have found that centralized planning efforts were responsible for the development of certain ancient structures.
E. Archaeological studies indicate that social and environmental changes had great influence on the construction patterns of several ancient communities.
04 Oct 2025, 21:52
Kudos
Bookmarks
Official Solution:
The ancient cliff dwellings of the ancient Puebloans in the southwestern United States may have been constructed much more quickly than within the 150-year span previously supposed by scientists, significantly altering researchers' understanding of societal development in Native American cultures. Pueblo oral histories hold that during the mid-13th century, a tribal leader named White Shell Woman organized a coordinated movement of communities into cliff dwellings for protection and resource management. But archaeologists had been unable to scientifically confirm this rapid transition, in part because of limitations with traditional pottery dating methods.
Recently, researchers, knowing that tree rings form annual growth patterns, applied dendrochronology to wooden support beams collected from various cliff dwelling sites. The technique measures both early and late wood formation within each ring, providing precise annual markers of when trees were harvested for construction. Dates from the samples that best reflect cutting time—those with bark still present—ranged from 1248 to 1265 CE, suggesting there was intensive cliff dwelling construction during that period. Because, the researchers argue, these structures served as centers for food storage and resource distribution, the rapid construction likely indicates a significant shift in community organization.
The events described by Pueblo oral histories agree with these new dates, and the cliff dwellings provide tangible archaeological evidence that this sociopolitical shift happened within a single generation of Ancestral Puebloans. This compressed timeline suggests that environmental pressures and increased regional conflict accelerated the need for protective structures far more quickly than previously thought.
Which of the following best summarizes the central idea of the passage?
A. Scientific evidence suggests that a series of structures were constructed rapidly over a short period of time.
B. Conflicting accounts between earlier scientific data and local traditions have led researchers to new scientific methods.
C. New scientific methods have provided evidence that supports historical accounts of significant social and structural changes occurring rapidly in a particular society.
D. Researchers have found that centralized planning efforts were responsible for the development of certain ancient structures.
E. Archaeological studies indicate that social and environmental changes had great influence on the construction patterns of several ancient communities.
A) Incorrect. The passage does report that cliff dwellings were built quickly, yet its main focus is broader. It emphasizes how dendrochronology confirms Pueblo oral histories and reshapes our view of societal change, not merely that construction happened fast.
B) Incorrect. Earlier pottery dating and Pueblo oral histories were not described as “conflicting.” Instead, pottery data were inconclusive, and the new tree-ring method produced dates that aligned with the oral accounts. The passage highlights confirmation, not conflict.
C) Correct Answer. The core message is that applying a new scientific method, dendrochronology, produced evidence matching Pueblo oral histories, showing that major social and structural changes occurred within one generation. This option captures both the use of a new technique and the confirmation of a rapid societal shift.
D) Incorrect. The text mentions a coordinated movement led by White Shell Woman but never claims centralized planning was the chief finding or the central theme. The focus is on dating evidence and its implications, not on administrative organization.
E) Incorrect. While environmental pressures and conflict are cited as factors, the passage centers on one society, the Ancestral Puebloans, not “several ancient communities.” Thus the scope of this choice is too broad to summarize the passage accurately.
Answer: C
The ancient cliff dwellings of the ancient Puebloans in the southwestern United States may have been constructed much more quickly than within the 150-year span previously supposed by scientists, significantly altering researchers' understanding of societal development in Native American cultures. Pueblo oral histories hold that during the mid-13th century, a tribal leader named White Shell Woman organized a coordinated movement of communities into cliff dwellings for protection and resource management. But archaeologists had been unable to scientifically confirm this rapid transition, in part because of limitations with traditional pottery dating methods.
Recently, researchers, knowing that tree rings form annual growth patterns, applied dendrochronology to wooden support beams collected from various cliff dwelling sites. The technique measures both early and late wood formation within each ring, providing precise annual markers of when trees were harvested for construction. Dates from the samples that best reflect cutting time—those with bark still present—ranged from 1248 to 1265 CE, suggesting there was intensive cliff dwelling construction during that period. Because, the researchers argue, these structures served as centers for food storage and resource distribution, the rapid construction likely indicates a significant shift in community organization.
The events described by Pueblo oral histories agree with these new dates, and the cliff dwellings provide tangible archaeological evidence that this sociopolitical shift happened within a single generation of Ancestral Puebloans. This compressed timeline suggests that environmental pressures and increased regional conflict accelerated the need for protective structures far more quickly than previously thought.
Which of the following best summarizes the central idea of the passage?
A. Scientific evidence suggests that a series of structures were constructed rapidly over a short period of time.
B. Conflicting accounts between earlier scientific data and local traditions have led researchers to new scientific methods.
C. New scientific methods have provided evidence that supports historical accounts of significant social and structural changes occurring rapidly in a particular society.
D. Researchers have found that centralized planning efforts were responsible for the development of certain ancient structures.
E. Archaeological studies indicate that social and environmental changes had great influence on the construction patterns of several ancient communities.
A) Incorrect. The passage does report that cliff dwellings were built quickly, yet its main focus is broader. It emphasizes how dendrochronology confirms Pueblo oral histories and reshapes our view of societal change, not merely that construction happened fast.
B) Incorrect. Earlier pottery dating and Pueblo oral histories were not described as “conflicting.” Instead, pottery data were inconclusive, and the new tree-ring method produced dates that aligned with the oral accounts. The passage highlights confirmation, not conflict.
C) Correct Answer. The core message is that applying a new scientific method, dendrochronology, produced evidence matching Pueblo oral histories, showing that major social and structural changes occurred within one generation. This option captures both the use of a new technique and the confirmation of a rapid societal shift.
D) Incorrect. The text mentions a coordinated movement led by White Shell Woman but never claims centralized planning was the chief finding or the central theme. The focus is on dating evidence and its implications, not on administrative organization.
E) Incorrect. While environmental pressures and conflict are cited as factors, the passage centers on one society, the Ancestral Puebloans, not “several ancient communities.” Thus the scope of this choice is too broad to summarize the passage accurately.
Answer: C
