2
Because only 3 percent of the liquid water on Earth is use-able for drinking and agriculture. The rest of it is salt water which can not be used for either.
2
Fresh water is used for drinking, whereas salt water can't be used.
is a standard additive used to make water potable, among other things balancing the acidity of water taken from wells or reservoirs.
It depends on the rate of water pollution . If so, the percentage would decrease. If not, it will either increase or remain the same. But currently,we believe that 3 percent of the entire world's water is drinkable.
what mineral can be used in drinking water and toothpaste and steel
Obviously drinking water.
Most of the water in the Middle East is used for drinking, residential commodities, and agriculture.
For drinking water fine sand is frequently used.
no, human cannot drink from sea water directly, but desalinisation plants can remove the salt from sea water making it drinkable. It can be done now, but is very expensive to do, but in the future they might/will become more important and 'economical' to carry out.
Mostly drinking water
No