Question

4 of 6
argon
nitrogen
helium
all of the above
causes rapid asphyxiation when it is inhaled in high enough concentrations (like from a leak).

Explanation:

Helium, nitrogen, and argon are all inert gases. When inhaled in high - enough concentrations, they displace oxygen in the air, leading to rapid asphyxiation.

Answer:

All of the above