In the chinampa agricultural system, which consequence results when hydraulic gradients exceed earthen wall tolerances?

💡 Explanation

Island erosion occurs due to hydraulic pressure exceeding the cohesive strength via slope instability; because water flows through weaknesses therefore the elevated water table saturates and weakens the soil, rather than the other options that involve carbon sequestration/nutrient flow.

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• Which limiting consequence could plague medieval mariners navigating via astrolabe?
• Which outcome results from depleted hydraulic head at Aztec chinampa systems?
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