Answer: Blast chiller
Explanation:
Contamination vehicles facilitate the transfer of micro-organisms from one location to another, serving as a potential source for contamination.
Among the choices mentioned, Blast Chillers do not function as contamination vehicles. They resemble high-performance freezers since their purpose is to freeze food rapidly. This process prevents food from entering the "danger zone temperature of contamination" - the interval between cooking and cooling temperatures.
Due to this quick freezing technique, the likelihood of items inside a blast chiller facing contamination is significantly reduced, as the cold environment inhibits bacterial growth.
The primary reason is that 220 lb is lighter than 288 lb; if both were running, the greater mass of the 288 lb individual poses a significant challenge.
Response:
To drink, utilize a cup without a straw
Rationale:
1. Individuals who are already infected with bacteria can transmit germs through sneezing and coughing. This occurs because human mucus provides a nutrient-rich environment that supports microbial growth. Research indicates that around 100,000 germs can be released into the air from a single sneeze or cough. Therefore, avoiding these actions can significantly help prevent germ transmission.
2. Our eyes produce ocular lubricant (mucus) that keeps them moist, making them a potential host for contagious germs. Consequently, steering clear of eye rubbing can decrease the likelihood of spreading germs.
3. Finally, smoking involves inhaling and exhaling the gases created by burning tobacco or other substances. Our lungs also contain mucus that facilitates the transfer of oxygen from air to the bloodstream. Therefore, when an infected individual exhales, they can pollute the surrounding air with germs.
4. The final point is inaccurate because using a cup that lacks a straw would lead to contamination of the cup's surface, posing a risk to anyone who touches the cup during serving or cleaning, as they might also pick up germs.
