Question

How does it occur in the free state and in the combined state.

Answer 1

Water occurs in free state : In the form of ice, snow, frost
As – river water, lake water, sea water, spring water
As – water vapour, clouds, mist, fog
In combined state : In plants and animals, in hydrated salts i.e., MgCl₂.6H₂O and in certain minerals, milk, dry cereals and in green vegetables.