Which is a career field hazard related to materials in the form of gases?

• A. Solid wastes
• B. Ultraviolet exposure
• C. Liquid gases
• D. Loud noise

Answer: (C)

Handling materials that are gases often involves cryogenic liquids—substances kept in a liquid state at very low temperatures. These liquids can rapidly boil off into gas, filling a space and potentially displacing breathable air, which creates a serious asphyxiation risk. The extreme cold can also cause frostbite or cold burns to skin and eyes. This combination of oxygen displacement and extreme cold is characteristic of hazards tied to gases in liquid form, making it the most relevant option for a career-field hazard involving gases.

Solid wastes, ultraviolet exposure, and loud noise describe hazards from different sources or material forms and do not capture the gaseous hazard profile associated with cryogenic liquids.