Which consequence results when the canal's embankment undergoes subsidence?

💡 Explanation

Water logging increases because subsidence reduces elevation control, affecting gravity-driven flow and causing uncontrolled water spread. Therefore, farmland near breaches become waterlogged, rather than improvements to the system occurring as in answers C/D/A which provide no reason for water delivery at the failure point. The MECHANISM at play is 'hydraulic head'.

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