What is a major hazard associated with oxygen handling?

Oxygen is highly reactive and can pose significant hazards, particularly when it comes into contact with organic materials. This reactivity can lead to combustion or explosions, especially under pressure or in a concentrated state. When handling oxygen, the risk of fire increases when there are flammable substances present, as pure oxygen can enhance combustion processes. Proper safety measures and protocols must be followed to mitigate this risk during storage and use, which is why this answer is considered the correct choice.

While the other options relate to various safety considerations, they do not directly address the specific hazards associated with oxygen itself. Low visibility conditions, slow evaporation rates, and loss of electrical power do not capture the unique risks posed by the handling of oxygen in aviation or industrial environments.