Question:

Read the passage and answer:
Several historians argue that the decline of ancient civilizations was not solely due to environmental factors but also due to institutional rigidity. When rules and governance systems become resistant to change, societies lose flexibility and innovation capacity. Even mild environmental shocks can then trigger collapse because institutions cannot adapt quickly enough.
Question:
Which of the following can be inferred from the passage?

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For inference questions, look for statements that must be true based on the passage—not something stated verbatim, but something logically implied.
Updated On: Jul 4, 2026
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Approach Solution - 1

Approach: An inference must follow necessarily from the lines given \(-\) not add new causes, not overstate. Read what the passage commits to, then choose the safe restatement.

Step 1 \(-\) the given logic: Decline came not only from the environment but from institutional rigidity. Rigid governance loses flexibility and innovation, so even a mild environmental shock can trigger collapse because institutions cannot adapt fast enough.

Step 2 \(-\) flip it to the inference: If rigidity makes a society fall to small shocks, then adaptable institutions help a society withstand those same shocks. That is the contrapositive flavour the passage forces on us.

Step 3 \(-\) the correct option: "Societies with adaptable institutions are more resilient to environmental or external shocks than those with rigid governance systems." Fully supported \(-\) it only restates the cause-effect already stated.

Why the wrong options fail: One claiming the environment plays no role is too extreme \(-\) the passage says "not solely," keeping environment in play. One saying rigid institutions always cause collapse overstates \(-\) collapse needs a triggering shock. One blaming only external invaders is out of scope \(-\) never mentioned.

\[\boxed{\text{Correct: adaptable institutions} \Rightarrow \text{greater resilience to shocks.}}\]
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Approach Solution -2

Boundary-drawing method: For inference questions the safest technique is to draw a line around exactly what the passage commits to, then check which option sits inside that line without adding anything extra. The passage commits to three things only: environment is not the sole cause of collapse; rigid institutions lose flexibility; and that lost flexibility lets even a mild shock topple a rigid society.

Redraw that boundary as a comparison: a society that keeps its adaptability would need a bigger shock, or would resist a mild one altogether, to collapse — the mirror image of the third point, nothing new added. The option stating that societies with adaptable institutions withstand shocks better than rigid ones sits exactly on that boundary. Any option that steps outside it — denying environment matters at all, treating rigidity as collapse's sole and certain cause, or introducing invaders or economics the passage never names — falls outside the line and is rejected.

\[ \boxed{\text{Adaptable institutions withstand shocks better than rigid ones - the mirror of the passage's own claim.}} \]
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