Question

is water lost when it is used

Answer 1

yes, let us take an example of plants. Water is necessary for plants but only a small amount of water taken up by the roots is used for growth and metabolism. The remaining 97–99.5% is lost by transpiration and guttation. ... This movement lowers the waterpotential in the leaf airspace and causes evaporation of liquid waterfrom the mesophyll cell walls.

No, If WE use water in our daily chores like washing clothes, utensils etc then water we used will automatically return by passing through many processes....

Answer 2

yes and no in sometimes when we use water for our domestic chores like bathing water is recycled I.e we get use that water again but when we water a tree or a plant it consumes the water through which they make food SO THE ANSWER IS YES AND NO