SAT Reading and Writing Practice Question #761 (Hard (800)) | Test Citadel
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SAT Reading and Writing Difficulty: Hard (800)

Digital SAT Reading and Writing Practice Question #761

Test your problem-solving accuracy on this official-caliber item. Select an answer choice to check your reasoning instantly.

Isotopic analysis of benthic foraminifera tests (shells) reveals a sudden negative excursion in carbon-13 during the Paleocene-Eocene Thermal Maximum (PETM), suggesting a massive influx of isotopically light carbon into the ocean-atmosphere system. While some traditional models attribute this primarily to the destabilization of methane hydrates—which are extremely depleted in carbon-13—recent sedimentary evidence recovered from the Lomonosov Ridge indicates that the initial carbon release and subsequent atmospheric anomaly predated the deep-ocean warming necessary to dissociate these deep-sea hydrates. Which of the following claims is most strongly supported by the text?
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Socratic AI Engine Step-by-Step Derivation
0ms Precomputed
Tactical Insight (Hint 1)

Pinpoint the exact author claim or researcher hypothesis first. The correct option must provide direct empirical backing without overstepping scope.

Elimination Framework (Hint 2)

Elimination Strategy: In digital reading/writing, 3 out of 4 choices contain an active flaw (half-right/half-wrong, too extreme, or wrong transition type). Cross out options with absolute words like "always", "proves", or "never".

Masterclass Solution & Distractor Trap Analysis

Let's break this down like elite SAT scholars. The passage discusses the PETM and a massive release of 'isotopically light carbon.' Traditional models blame 'methane hydrates.' However, the pivot of the passage is the 'recent sedimentary ev...

Distractor Analysis: Trap choice eliminates careless test-takers who confuse roots with coordinates...

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