Multiple Choice
Which of the following best explains the importance of microorganisms in maintaining the quality of groundwater used for drinking in the United States?
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1. Introduction to Microbiology
Importance of Microorganisms
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Which of the following is a type of contamination in a food establishment caused by microorganisms?
A
Physical contamination
B
Chemical contamination
C
Radiological contamination
D
Biological contamination
Verified step by step guidance1
Understand the different types of contamination that can occur in a food establishment: physical, chemical, radiological, and biological.
Recognize that physical contamination involves foreign objects like glass or metal fragments entering food, which are not caused by microorganisms.
Know that chemical contamination involves harmful chemicals such as cleaning agents or pesticides, which are also not caused by microorganisms.
Identify radiological contamination as contamination by radioactive substances, unrelated to microorganisms.
Conclude that biological contamination is caused by microorganisms such as bacteria, viruses, fungi, or parasites, making it the correct type of contamination caused by microorganisms in food establishments.
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