When One Text Is Silent on the Other's Topic

The paired-passage section builds a map of where two texts agree and where they clash. The hardest question type breaks that map: it asks about a claim or topic that only one passage raises. There is no agreement edge and no disagreement edge to draw, because the second passage never got there. The honest answer names that gap instead of forcing a connection that isn't on the page.

The method is to check what the second passage actually measures or discusses, then compare that to what the question asks about. If the topics don't overlap, the correct choice usually says something like 'offers an additional cause' or 'neither supports nor undermines' rather than 'confirms' or 'contradicts'. Resist choices that claim the silent passage disagrees. Silence means the passage's author didn't address the point, not that they'd reject it if asked. A passage about seed varieties and irrigation can leave a claim about city migration completely untouched while still adding a second, separate explanation for the same output numbers.

This sits right next to the agreement and disagreement edges in the paired-passage map, because it's the test of whether you've actually read for what each text claims rather than pattern-matching on shared subject matter. Two passages about the same broad event, like wolves and willow or cities and farms, can still run on separate tracks. Spotting when they do is what separates a careful synthesis from a guessed one.