Answer:
Step-by-step explanation:
Physical contamination refers to the actual objects you find in food, such as hair,nails,glass,pest and any other objects.
Chemical contamination refers to pesticides ,cleaning agents and antibiotics.
Biological contamination includes salmonella, listeria, and any other microbes.
Physical contamination occurs in three ways naturally,accidentally and intenitionally
Natural Physical Contamination
This includes things like finding insects in your broccoli or bones in a boneless fish, food manufactures will try they maximum best to remove all these physical contaminants but it may not occur 100%.
Insects in food aren't typically considered a safety concern, unless they carry diseases that can impact human health. Insects generally pose more of a quality concern as consumers do not like finding them in their food.
Accidental Physical Contamination
These are things like plastic which broke from a sugar bag when someone was mixing flour in the kitchen, when baking cakes. it can also be mental broken and accidentally ended up in food .This is usually prevented by passing good through a metal detector
Intentional Physical Contamination
These are hair and nails these is plainly out of negligence since there are always gloves and hair cover in the kitchen for kitchen stuff.