The answer is "c. water pollution".
"Water pollution" is the most likely cause for future water shortages
Water pollution is an enormous issue, particularly when you're taking a gander at territories that don't really have a decent sewage framework. Pollution can be anything from oil, to bodies, to synthetics, and to fecal issue. Regardless of what it will be; it makes a considerable measure of issues for the general population who may need to utilize it.
The lack of clean drinking water far and wide powers a large number of individuals to drink perilous water. This prompts an expansion in infections like looseness of the bowels, the second driving reason for death in youngsters under five. Surges, dry seasons, pollution and environmental change have made much more issues.
