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Zorluk: Çok zorExplicit Details

In a 2024 study of the pre-contact agricultural terraces in the Peruvian Andes, archaeologist Elena Vance and her team analyzed microfossil assemblages retrieved from soil profiles at the site of Wisijsa. While previous scholars hypothesized that these terraces were used exclusively for maize cultivation to support administrative elites, Vance's team recovered starch grains belonging to *Solanum tuberosum* (potato) and *Phaseolus vulgaris* (common bean) alongside maize (*Zea mays*). Crucially, the starch grains of *Solanum tuberosum* were retrieved from the oldest, basal soil layers dating to the early eleventh century, whereas maize starch grains only appeared in upper strata dating to the late fifteenth century, coinciding with the Inca expansion into the region. This stratigraphical distribution suggests that early agricultural production at Wisijsa was diverse and localized, rather than monocultural and elite-directed.

Based on the text, what is true about the starch grains recovered at Wisijsa?

  1. A
    Starch grains of *Solanum tuberosum* were absent from the soil layers associated with the period of Inca expansion.
  2. B
    Maize starch grains were retrieved from the oldest, basal soil layers at the site.
  3. Starch grains of *Solanum tuberosum* were located in soil strata that predate the strata containing maize starch grains.Cevap
  4. D
    Starch grains of *Phaseolus vulgaris* were found exclusively in the basal soil layers dating to the early eleventh century.

Cevap

Starch grains of *Solanum tuberosum* were located in soil strata that predate the strata containing maize starch grains.
The correct answer is supported by the passage, which states that starch grains of Solanum tuberosum were recovered from the oldest, basal soil layers dating to the early eleventh century, while maize starch grains only appeared in upper strata dating to the late fifteenth century. Since the eleventh century predates the fifteenth century, the soil layers containing Solanum tuberosum starch grains predate the layers containing maize starch grains.

Adım Adım Çözüm

1
Identify the stratigraphic location and date of the potato (*Solanum tuberosum*) starch grains.
The text states that potato starch grains were retrieved from the oldest, basal soil layers, which date to the early eleventh century.
This establishes the timeline for the potato starch grains.
2
Identify the stratigraphic location and date of the maize starch grains.
The text states that maize starch grains appeared in the upper strata, which date to the late fifteenth century.
This establishes the timeline for the maize starch grains.
3
Compare the two timelines to determine their relative order.
Because the early eleventh century (associated with potato starch) is earlier than the late fifteenth century (associated with maize starch), the soil layers containing potato starch predate the layers containing maize starch.
This step verifies which statement is directly supported by the chronostratigraphic evidence in the text.

Anahtar Kavram

Identifying explicit details and stratigraphic timelines in academic passages.
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Konular

Explicit Details

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