Question

which one of the following contaminants is a physical contaminant? hair detergent insecticide botulism

Explanation:

To determine the physical contaminant, we analyze each option:

• Hair: Physical contaminants are foreign objects (like hair, glass, metal) that are not chemical or biological. Hair is a physical object.
• Detergent: Chemical contaminant (cleaning agent, chemical in nature).
• Insecticide: Chemical contaminant (pesticide, chemical compound).
• Botulism: Biological contaminant (caused by bacteria, a biological agent).

Answer:

A. Hair