Which is the earth largest source of drinking water?

The Earth's largest source of drinking water is freshwater found in glaciers and ice caps, particularly in Antarctica and Greenland. While this freshwater is not readily accessible for consumption, it accounts for about 68% of the Earth's total freshwater supply. Other significant sources include rivers, lakes, and groundwater, with groundwater being the most utilized source for drinking water in many regions. Overall, surface water bodies like rivers and lakes serve as crucial, accessible sources for drinking water.