Question

A drowned person cannot survive under water even though air is dissolved in water. Comment.

Whoever will answer this question will be marked as brainliest.​

Answer 1

The answer to this question is quite simple-

The respiratory system of human[s] has not adapted to extracting oxygen from the water-

While inhaling air-the air travels from your nasal cavity-to your trachea-and at last your lung[s]- which further branch-out to bronchi and bronchiole[s]-that finally reach your alveoli-

Here-oxygen passes through your lung membrane[s]-to the bloodstream-

Afterwards-carbon dioxide is expelled-out- during the process of exhalation-

Unlike this respiratory cycle of a human- a marine animal-like a fish has adapted to breathing underwater-

Oxygen is essential for the survival of a fish-but its lung[s] are not designed to extract- -oxygen-directly from the air-

Instead-it passes the water through its gill[s]- and eliminates unwanted gase[s]-

[That is also the reason-that a fish dies when brought out of water]-

Henceforth-

despite there being air dissolved in water-a drowned person will not be able to survive there-