Which of the following is considered biological waste?

Biological waste refers to any waste that originates from a living organism, specifically waste that poses a risk of infection or contamination. Human blood and body fluid waste falls squarely within this definition, as it can contain pathogens that may pose a health risk to individuals handling it or to the environment if not disposed of properly. This type of waste must be handled, stored, and disposed of according to strict regulations to ensure safety in medical and laboratory environments.

In contrast, household waste, plastic packaging waste, and office trash do not fall under the category of biological waste, as they do not contain human or animal tissues or bodily fluids that could transmit infectious agents. Therefore, the correct identification of human blood and body fluid waste as biological waste is critical for maintaining health and safety standards in laboratory and clinical settings.