Question

how do you kill bacterial pathogens in food?
rinsing food with cold water
cooking foods to a safe temperature
rinsing food with warm water
freezing food before eating it
6
multiple choice 1 point
which of the following is not a way to prevent cholera from spreading?
keeping surfaces clean
boiling water
access to safe drinking water
vaccines

Explanation:

• First question:
• Rinsing food with cold or warm water only removes dirt and some bacteria but doesn't kill bacterial pathogens. Freezing food slows down bacterial growth but doesn't kill them. Cooking foods to a safe temperature (e.g., high - enough heat) denatures bacterial proteins and kills them.
• Second question:
• Keeping surfaces clean reduces the presence of cholera - causing bacteria. Boiling water kills cholera bacteria. Access to safe drinking water (which is free of cholera bacteria) prevents its spread. Vaccines are for prevention of disease in individuals (immunity) but not a direct way to prevent the spread of cholera in the environment like the other three options.

Answer:

• First question: Cooking foods to a safe temperature
• Second question: Vaccines