Which of the following is NOT a biological hazard?

The correct answer is the option representing insecticide, as it does not fall under the category of biological hazards. Biological hazards primarily include living organisms or their byproducts that can cause illness or damage. This encompasses a variety of pathogens such as bacteria, viruses, and parasites, each of which can contaminate food or surfaces and lead to foodborne illnesses.

Insecticides, on the other hand, are chemical substances designed to kill or control insects. While exposure to insecticides can pose health risks and lead to food safety concerns, they are classified as chemical hazards, not biological ones. Understanding the difference between biological and chemical hazards is crucial for implementing effective food safety practices and ensuring the health and safety of consumers.