PDF chapter test TRY NOW
About \(71\)% of earth’s surface is covered with water, then why do we face scarcity of water?
- of total water is found in seas and oceans, which is salty and not fit for human consumption.
- Only of fresh water is available and that too available in polar ice caps and glaciers.
- Out of of fresh water, only is available as surface water in lakes, rivers, and swamps.