Answer:
Biological contamination is the leading cause of food-borne illness and food poisoning*, and a common cause of food spoilage and food waste. There are six types of microorganisms that can cause food-borne illness: bacteria, viruses, parasites, protozoa, fungi and prions.
Answer:
Theory can be formed.
Explanation:
Theory may be defined as the explanation of the natural world that can be tested by the scientific methods. Theories can be tested under the controlled experiments.
The scientific experiment has tested a drug and used in one group that getting the drug and other group that getting sugar pill. The group getting drug shows better result than other group, this can be formulated as theory.
change in mood,
change in attitude,
change in their character,
