Question 1
While researching a topic, a student has taken the following notes:
- Isotopic analysis of sheep teeth shows alternating signatures consistent with grazing in lowlands and uplands.
- Portable hearths and lightweight ceramics dominate artifact assemblage, suggesting frequent relocations.
- Pollen from occupation layers indicates spring flowering species absent from nearby winter pastures.
- One burial includes marine shells traded from the coast, showing long-distance exchange networks.
- Faunal remains show lambing season bones clustered in strata associated with upland camps.
- Radiocarbon dates place the occupations between 1200 and 800 BCE.
The student wants to explain how researchers inferred seasonal migration. Which choice most effectively uses relevant information from the notes to accomplish this goal?
- Marine shells in a burial demonstrate long-distance trade links, speaking to exchange networks rather than movements between seasonal pastures or recurring camp relocation patterns.
- Radiocarbon dates place occupations between 1200 and 800 BCE, establishing chronology without explaining how settlement locations changed over the year or why herders moved seasonally.
- Clay tablets listing monthly camp moves documented the migration schedule directly, providing a written record of seasonal transhumance at the site according to excavators there.
- Alternating lowland and upland isotopic signatures in sheep teeth, combined with portable hearths and lightweight ceramics indicating frequent moves, led researchers to conclude the community seasonally shifted camps between grazing zones.
Explanation: Choice D integrates isotopic alternation with portable gear indicative of frequent moves to infer seasonal shifts. A and B are true but off-goal, and C invents written records not noted in the research.