The temperature danger zone is: ? 41 degrees to 140 degrees 41 degrees to 130 degrees 41 degrees to 135 degrees 10 degrees to 32 degrees

41 degrees to 140 degrees.

Explanation:

The danger zone in food safety terms refers to the temperatures within which food should not be kept or else it will probably become contaminated. Bacteria can easily develop in food if it's kept within the temperatures between 41 and 140 degrees Fahrenheit for more than two hours. In such cases, food should be thrown away. This is the reason why fridges should be set at a temperature of under 4 degrees Celsius anyway to prevent food from going bad.

invention of the washing machine

in the past, people used sticks and stones or scrub boards to clean their clothing. as it was sweaty, backbreaking work, we owe a world of to james king because he created the model for the modern washing machine in 1851. the most important issue was that this machine cleaned clothes while a person cranked the handle. doing this made people who used it develop strong muscles in their arms. later, in 1908, alva j. fisher created an electric washing machine named thor. this one was not the first automatic washing machine. however, it was one of the most popular models at the time.

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