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Difficulty: HardIdentifying Main Ideas and Supporting Details

In an analytical feature discussing contemporary sustainable engineering in western Argentina, the author examines the revival of ancestral building techniques:

'In the semi-arid foothills of western Argentina’s Cuyo region, architects and environmental engineers are re-evaluating traditional vernacular earth construction to address contemporary climate shocks. For decades, commercial developments prioritized reinforced concrete and steel, relying extensively on carbon-intensive mechanical heating and refrigeration. However, recent life-cycle assessments indicate that modern rammed-earth (tapial) and compressed-earth block composites not only reduce embodied carbon by sixty percent compared to conventional masonry, but their superior thermal inertia also dampens diurnal temperature oscillations by up to twelve degrees Celsius. Rather than viewing ancestral earthworks as obsolete relics of pre-industrial poverty, contemporary regional planning frameworks are embedding these bio-based composites into municipal building codes alongside passive solar orientation. While scaling these construction methods faces persistent logistical hurdles—principally a shortage of standardized structural certification protocols and specialized artisan labor—pilot infrastructural projects in agricultural valleys have demonstrated substantial long-term reductions in municipal grid dependency. Consequently, the revitalization of vernacular earthen engineering offers a viable, low-emission paradigm for climate-resilient urban expansion in arid territories.'

Which of the following statements best synthesizes the central thesis of the text?

  1. A
    The widespread implementation of earthen architecture in arid zones is currently unfeasible due to insurmountable deficits in structural certification protocols and skilled craftsmanship.
  2. B
    Recent life-cycle evaluations demonstrate that modern compressed-earth block composites decrease embodied carbon by sixty percent relative to conventional masonry.
  3. Modernizing and incorporating vernacular earthen construction into regional planning presents an effective, low-carbon pathway for achieving climate resilience in arid environments.Answer
  4. D
    Commercial developers are exclusively responsible for urban climate vulnerability because they dismissed ancestral building methods out of cultural prejudice.

Answer

Modernizing and incorporating vernacular earthen construction into regional planning presents an effective, low-carbon pathway for achieving climate resilience in arid environments.
The correct response encapsulates the global thesis established throughout the passage and confirmed in the concluding sentence: that contemporary adaptations of traditional earthen building techniques provide a practical, sustainable, and climate-resilient solution for arid regions.

Step-by-Step Solution

1
Analyze the passage structure to distinguish the overarching argument from supporting data and background context.
The passage begins by introducing the reassessment of earthen architecture, provides empirical performance metrics (60% carbon reduction, 12°C temperature moderation) and policy adaptations as support, acknowledges logistical constraints, and concludes with a definitive synthesis in the final sentence.
Identifying the organizational progression of the article allows one to differentiate between premises, supporting evidence, counterarguments, and the primary thesis.
2
Evaluate the concluding synthesis against each provided option.
The concluding statement asserts that 'the revitalization of vernacular earthen engineering offers a viable, low-emission paradigm for climate-resilient urban expansion in arid territories.'
Journalistic and analytical essays typically consolidate their core thesis in the opening or closing sections, supported by body evidence.
3
Select the option that encompasses the full scope of the text without narrowing to a single statistic or exaggerating secondary details.
The choice emphasizing the modernization and integration of earthen construction as an effective, low-carbon pathway for climate resilience accurately synthesizes the full text.
The correct main idea must represent the central claim rather than an isolated supporting fact or an extreme inference.

Key Concept

Identifying Main Ideas and Supporting Details in Analytical Articles
Estimated Time:2m 0s
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Identifying Main Ideas and Supporting Details

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