Final answer:
The proper method of disposing double bagged biohazard waste is to double bag and discard it in a biohazard container.
Step-by-step explanation:
The proper method of disposing double bagged biohazard waste is to double bag and discard it in a biohazard container. This method ensures the containment and proper handling of potentially hazardous materials. Incinerating the waste or burying it in a landfill can pose environmental and health risks, as biohazardous waste needs to be treated and disposed of in a controlled manner to prevent any potential harm.