A person handling food inserts the hose's tip into a mop bucket and turns on the water to fill it. The improper actions of the food handler resulted in a cross-contamination.
Cross-contamination is the unintentional transfer of a dangerous substance from one food to another. The transfer of dangerous germs or other contaminants from other foods, cutting boards, and utensils to food is what is referred to as cross-contamination. When working with raw meat, poultry, eggs, and shellfish, this most frequently occurs. Cross-contamination of foods can also come from people. Examples include: handling veggies or other ready-to-eat items after handling raw meats without washing their hands in between. using a towel or apron that has been stained with food to wipe your hands after handling various foods.
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To create a thunderstorm you need to have three things, the first of which is a mass of unstable air, which is the result of warm moist air in the lower atmosphere and cold dry air in the upper atmosphere. The second thing needed for a thunderstorm to develop is the force, which mixes the warm and cold air causing the instability. This force can be wind from mountains, fronts or in air convergence like that found where bodies of water and land meet. The warm air rises from the lower atmosphere causing an updraft, which mixes with the heavier cold air. The third factor that must be present for the creation of a thunderstorm is moisture in the atmosphere. This happens when the moisture in the air turns into water droplets and forms clouds. These three things together make up the cumulus stage or formation of a thunderstorm.
The second phase of a thunderstorms life cycle is the mature thunderstorm phase which is when the moisture formed in the clouds is released when it becomes to heavy to stay up in the atmosphere and falls to earth in the form rain, snow, sleet or hail. During this phase there is an updraft of the lighter moist warm air from the ground, which keeps the thunderstorm from dissipating. While the warm air is rising there is cold dry air that is causing a down draft causing the heavy water droplets to fall. This is also the period when there is thunder and lightning, which is one of the more spectacular aspects of thunderstorm.