Question

Why cant we take oxygen dissolved in water?​

Answer 1

Answer:

because the quantity of oxygen is very much which cannot be inhailed

Answer 2

The reason we cannot breathe liquid water is because the oxygen used to make the water is bound to two hydrogen atoms, and we cannot breathe the resulting liquid. The oxygen is useless to our lungs in this form.

Fish "breathe" the dissolved oxygen out of the water using their gills, which lacks in humans . It turns out that extracting the oxygen is not very easy.

Air has something like 20 times more oxygen in it than the same volume of water. So, it is easy for humans to inhale it.

Hope it helps...