What is Water scarcity ? What are its main reasons ?

Solution-
Water scarcity refers to shortage or lack of clean and unpolluted water in a region.

Major Causes of Water Scarcity include

 emissions of waste from industries into the rivers,
-Increased human consumption
-Overuse and wastage of water
-lack of water management,
 lack of water treatment plants,
 ignorance of people, land forms and changes in climate.