Food handlers are people who are responsible for activities such as: preparing and cooking food, serving and packing food. They are also responsible for putting foods at display and storing it. There are many instructions and safety plans that they must stick to. It’s a very complex role as people’s lives might be endangered if the food goes bad or if they do something wrong with declaration as many people are allergic to something.
in controlled experiment an independent variable is systematically manupulated and dependent variable is measured ; any extraneous variables are controlled
