Which of the following is an example of a biohazard?

Medical waste is considered an example of a biohazard because it consists of potentially infectious materials that can pose health risks to humans and the environment. This type of waste often includes items such as used needles, materials saturated with blood, and other items contaminated with pathogens. The handling and disposal of medical waste require special procedures to prevent exposure to infectious agents, which distinguishes it clearly as a biohazard.

In contrast, uranium is a radioactive substance, impacting health primarily through radiation exposure rather than biological pathogens. Sulfuric acid is a highly corrosive chemical that poses significant risks due to its chemical nature, while asbestos is a mineral fiber known for its potential to cause respiratory issues and cancer—not due to biological hazards but rather its physical properties and their effects on human health when inhaled. Each of these options represents different categories of hazards, making medical waste the appropriate choice as a biohazard.