The process of heating a liquid at high temperature and rapidly cooling it to kill pathogens is called:

pasteurisation

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chlorination

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sedimentation

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sublimation

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Solution

The correct option is A pasteurisation
The process of heating a liquid to a high temperature and rapidly cooling it to kill bacteria is called pasteurization. The use of pasteurisation to kill pathogens has helped reduce the transmission of diseases such as thyroid fever, tuberculosis, polio.. etc.
Hence, the correct option is $A$

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The process of heating a liquid to a high temperature and rapidly cooling it to kill bacteria is called:

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