Identify the best main idea: A passage argues that school gardens improve nutrition.
QUESTION
Identify the best main idea: A passage compares two study methods and their results.
QUESTION
Identify the best main idea: A passage explains how beavers build dams step by step.
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ANSWER
Beavers build dams through a series of purposeful steps. The statement synthesizes the procedural description into a central claim about beavers' intentional construction process.