Answer:
Fish are able to live and breathe in water, but people need air to breathe. People drown when too much water gets into their lungs. When that happens, the lungs can't put oxygen in the blood. Then, too little oxygen gets to the brain and the rest of the body.
Drowning can happen so fast — sometimes in less than 2 minutes after a person's head goes under the water. That leaves very little time for someone to help.
