Which risk increases as floodplain development restricts space allowing for proper river levee maintenance and inspection?

💡 Explanation

When floodplain development restricts space, proper levee maintenance and inspection are impeded which increases subsurface erosion because visual indications of instability cannot be observed and corrected. Therefore levee failure risk significantly increases, rather than solely conductivity reduction, biodiversity loss or pollutants, which also depend on distinct environmental factors.

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