Which of the following is an example of class 6 toxic substances and infectious hazards?

• A. Water
• B. Insecticides, medical waste, and biological hazards
• C. Sugar
• D. Sand

Answer: (B)

Class 6 covers toxic substances and infectious hazards—materials that can poison people or spread disease. The option that lists insecticides (toxic chemicals), medical waste (potential infectious material), and biological hazards (organisms or substances that cause disease) fits this category best. These are classic examples of substances and materials you’d handle under class 6 because they involve toxicity or infectious risk and require special handling, containment, and disposal procedures.

Water, sugar, and sand are not class 6 toxic substances or infectious hazards. Water can be benign or hazardous in other contexts, but it isn’t itself a class 6 toxic substance or infectious hazard. Sugar and sand are inert materials with no inherent toxic or infectious properties in this classification.