HUMAN NUTRITION

Detailed explanation-1: -Physical contaminants primarily impact the physical appearance or other physical properties of water. Chemical contaminants are elements or compounds. Biological contaminants are organisms in water.

Detailed explanation-2: -Cross-contamination usually refers to biological contamination but can also be physical or chemical. Cross-contamination in a food business often occurs as a result of: Food Handlers (e.g. microorganisms from sweat, sneezing/coughing, hands, hair, clothing)

Detailed explanation-3: -Here are the three types of contaminants: Biological: Examples include bacteria, viruses, parasites, fungi, and toxins from plants, mushrooms, and seafood. Physical: Examples include foreign objects such as dirt, broken glass, metal staples, and bones. Chemical: Examples include cleaners, sanitizers, and polishes.

Detailed explanation-4: -Common pollutants include complex organic materials, nitrogen-and phosphorus-rich compounds, and pathogenic organisms (bacteria, viruses, and protozoa).

Detailed explanation-5: -Physical contamination occurs when foreign objects (such as metal filings, glass, jewelry, stones, or bone chips) contaminate foods and sometimes these objects can also be the vehicle for biological contamination (cross-contamination) if they harbor dangerous bacteria.