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Zorluk: KolayPassage Relationship and Structure

Passage A
The Cretaceous-Paleogene (K-Pg) mass extinction, which eradicated the non-avian dinosaurs, has long been attributed to a catastrophic asteroid impact. According to this widely accepted hypothesis, a massive extraterrestrial body struck the Earth approximately 66 million years ago. The primary structural evidence for this event is the presence of an unusually high concentration of iridium—an element rare in Earth's crust but abundant in asteroids—in a global geological layer corresponding to the extinction timeline. The impact would have generated a global ash cloud, blocking sunlight, halting photosynthesis, and triggering a sudden, catastrophic collapse of the global food chain.

Passage B
While the asteroid impact theory remains popular, an increasing number of paleontologists point to the Deccan Traps volcanism as the primary driver of the K-Pg extinction. This competing model emphasizes that massive volcanic eruptions in what is now India began hundreds of thousands of years before the proposed asteroid strike. These prolonged eruptions released colossal quantities of greenhouse gases and toxic aerosols into the atmosphere. The structural evidence of these lava flows suggests a gradual but severe climate shift, characterized by extreme temperature fluctuations and ocean acidification. Consequently, the extinction was not a sudden catastrophe, but rather a protracted ecological decline that simply culminated around the time of the asteroid impact.

Based on the two passages, match each structural element or relationship (on the left) to its most accurate description (on the right).

  • The relationship between the primary theses of Passage A and Passage BThey present competing theories for the same phenomenon, with the latter incorporating the former's central event into a broader timeline.
  • The structural role of the geological evidence (iridium in A, lava flows in B) in both passagesIt serves as the foundational physical proof used to justify the proposed mechanism of extinction.
  • The function of the final sentence of Passage B relative to Passage A's argumentIt reframes the catastrophic event championed by the first text as merely the culmination of a longer decline.
  • The shared internal organizational structure of both passagesIntroduction of a causal model, citation of physical evidence, and a concluding description of the ecological effects.

Cevap

The correct matching aligns the primary theses with competing theories on timelines; the geological evidence with foundational physical proof; Passage B's final sentence with reframing Passage A's event; and the shared internal structure with a 'causal model to evidence to ecological effect' progression.
Each structural element accurately aligns with its descriptive counterpart. The primary relationship between the passages involves competing theories where the second passage absorbs the first passage's event into a broader timeline. Structurally, both passages rely on physical geological evidence to prove their mechanism, both share an identical 'hypothesis-evidence-conclusion' logical progression, and Passage B strategically uses its final sentence to contextualize Passage A's main event.

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1
Analyze the primary theses of both passages to determine their macro-relationship.
Passage A argues for a sudden asteroid impact; Passage B argues for prolonged volcanism but acknowledges the asteroid at the end.
Understanding the core argument is necessary to evaluate how the two passages interact.
2
Examine the role of physical evidence in both texts.
Both passages use geological features (iridium and lava flows) to justify their proposed extinction mechanisms.
Identifying parallel rhetorical strategies is a key component of analyzing passage structure.
3
Compare the concluding sentence of Passage B to Passage A's main argument.
Passage B concludes that the extinction culminated around the asteroid impact, framing Passage A's central event as a final blow rather than the sole cause.
This establishes the precise logical relationship between the two authors' views.
4
Outline the organizational flow of both passages.
Both begin with a theory, introduce structural evidence, and end with the resulting ecological collapse.
This confirms their shared internal structural framework.

Anahtar Kavram

Passage Relationship and Structure
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Passage Relationship and Structure

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