Question

what will be the effect of stopping rainwater chanected to canals? ​

Answer 1

$\large\fbox\red{Answer}$

With depleting groundwater levels and fluctuating climate conditions, this measure can go a long way to help mitigate the adverse effects rising water scarcity. Reserving rainwater can help recharge local aquifers, reduce urban flooding and most notably, ensure water availability in water-scarce zones.