Question

Deep sea divers ascend slowly and breath continuously by time they reach the surface. Give reason.

Answer 1

• For every 10 m of depth, a diver experiences an additional 1 atm of pressure due to the weight of water surrounding him. 
• At 20 m, the diver experiences a total pressure of 3 atm. So the most important rule in diving is never hold breath.
• Divers must ascend slowly and breath continuously allowing the regulator to bring the air pressure in their lungs to 1 atm by the time they reach the surface.