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Sterilization is the complete removal of all microorganisms ( e.g: becteria, virsues,...etc) from the surface area of 'anything'

While Disinfection is an in-complete removal of microorganisms from" inanimate or nonliving" objects. and has three distinctive levels. High level disinfection, intermediate level, and low level.

Both sterilization and disinfection have chemical and physical methods. And since the question is about the methods of sterilization then there are:

physical methods: Heating and radiation

chemical methods: some chemicals like 'Etheline Dioxide', or by chemical evaporation.

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Q: What is sterilization and disinfection and what are the methods for sterilization?
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