Why may an area or region having ample water resources still face water scarcity?
Ans. An area or region having ample water resources may face water scarcity due to pollution of the water available.
Domestic and industrial wastes are dumped into rivers and lakes without treatment, thus making these water sources unfit to be used. This has increased in recent years due to increase in population leading to inefficient disposal of garbage, increasing industrialisation in which effluents are not treated before being dumped in water bodies etc.