SAT Reading and Writing Practice Question #665 (Hard (800)) | Test Citadel
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SAT Reading and Writing Difficulty: Hard (800)

Digital SAT Reading and Writing Practice Question #665

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

During the 19th century, the prevailing scientific consensus maintained that the deep ocean was a barren, lifeless abyss, as the complete lack of sunlight and crushing hydrostatic pressures were deemed utterly incompatible with biology. ______, when the HMS *Challenger* expedition dredged up thriving, bizarre ecosystems from oceanic depths exceeding 3,000 meters, biologists were compelled to radically reevaluate the physiological limits of life on Earth.
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Socratic AI Engine Step-by-Step Derivation
0ms Precomputed
Tactical Insight (Hint 1)

Read the sentences immediately before and after the blank. Determine the logical relationship: is it Cause/Effect (thus, consequently), Contrast (however, yet), or Addition (moreover)?

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 master this high-level Transitions question! To solve these, you must relentlessly identify the logical relationship between the sentence *before* the blank and the sentence *after* the blank. Sentence 1: The old scientific consensus ...

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

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