This is because :
1) 98% of it is present in oceans and can't be used as it is salty
2) 2% of it is found frozen in the form of icebergs and glaciers or on mountains as snow.
3) The rest 1% is present underground or as surface water in rivers and lakes i.e. fresh water.
precipitation A+
3%
20% of the worlds fresh water
Humans provide fresh water in dry areas by purifying the water.
fresh flowing surface water is one of our most precious resources
ice
caspian sea
bull shark
65
It contains one-fifth of the worlds fresh surfacewateer!
70% of the worlds fresh water and 90% of the worlds ice is stored in the Antarctic ice sheet.
well one fresh is clean but the other is not