Answer: The answers are bacteria, viruses and parasites
Bacteria, viruses and parasites are the contaminants that can cause foodborne illness.
Explanation: Bacteria are living organisms that exist in their millions. They can be seen or found everywhere. They are usually single celled and they can live within soil, in the ocean and inside the human gut. They can also be called microorganisms. They are so small that they cannot be seen with the naked eye but can be observed using a microscope. They can cause diseases to human.
Viruses are micro organisms that can be seen anywhere. They cause infection to plants and animals. They can also cause deadly diseases.
Parasites are organisms that have their habitation in another organism that is they live in another organism called the host. Parasites get their food from the host. They can spread diseases.