Pure or distilled water is not used for drinking, mainly because :
it is poisonous
it has no minerals.
it is bacteria free
it is not available easily
Boiling point of water is
100oC
99oC
101oC
102oC
Saline water is useful for :
washing clothes
drinking
for agriculture
dressing injured skin
In early winter mornings, we can see drops of water on the blades of grass. This is because of :
photosynthesis
transpiration
condensation
water cycle