Final answer:
The adulteration of food refers to the addition of foreign substances or particles that are not meant to be consumed with the food. This can include pests, animal feces, hairs, cigarette butts, wood chips, and other contaminants. Adulteration of food can result in foodborne diseases and poses a risk to consumer health.
Step-by-step explanation:
When foreign materials or particles are added to food that is not intended for consumption, it is referred to as adulterating the food. This can include additional impurities such as wood chips, hairs, cigarette butts, and animal faeces. Food adulteration puts consumers' health at risk and can lead to foodborne illnesses.