1. Finally formed berms in canals are provided for
A. O Protection of banks erosion by the waves
B. O Control of seepage losses
C. O Strengthening of banks
D. O All the above
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right answer is option C strenghting of banks
because , berms is the horizontal distance left at ground level between the toe of the bank and the top edges of cutting . they give additional strength to the banks and provide protection against erosion and breaches they protect the bank from erosion due to wave actions
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