To avoid oxygen toxicity and nitrogen narcosis,deep-sea divers breathe a specialized mixture of gas.Describe the mixture.
A) hydrogen and oxygen
B) nitrogen and oxygen
C) helium and oxygen
D) argon and helium
E) nitrogen and helium

Question

Quizplus · Accepted Answer

Helium is used in deep-sea diving as a substitute for nitrogen to avoid nitrogen narcosis. It is less soluble in blood than nitrogen, so it does not accumulate in the body tissues and cause the condition. Oxygen is necessary for respiration, but exposure to high levels of oxygen can cause oxygen toxicity, which can be life-threatening. Therefore, a specialized mixture of helium and oxygen is used to avoid both oxygen toxicity and nitrogen narcosis in deep-sea diving.

To Avoid Oxygen Toxicity and Nitrogen Narcosis,deep-Sea Divers Breathe a Specialized