Question

illustrate Any three ways by which harmful substances could contaminate food

Answer 1

1by don't washing the hands 2cover the foods with a boul reson small insect come and touch the food 3 by keeping food open....!

Answer 2

There are many ways that a food substance get contaminated by harmful substance like fungi, algae, bacteria and more. Three particular ways that a food substance get contaminated are

Biological ways that involves Bactria, viruses and more micro organisms

Physical method such as dirt, bones and metal.

Chemical method such as cleaners, sanitizes and more

Some of them are

• Improper cooking.
• Using untreated water for making a food substance.
• Carelessness.
• Unprocessed food materials.
• Unpasteurized dairy products.