What other type of fermentation do you know? does this have any commercial value for humanity? explain your answer

fermentation of alcohol. an example  of this is kombucha: a drink geared towards people who like healthier options with antibiotics in them. there is naturally occurring alcohol because of fermentation, and it has helped people buy it more because most adults love alcohol

the rocks are classified by the geological process they are formed by. the three main groups of rocks are igneous, metamorphic, and sedimentary. minerals are not they are classified under the chemical classes they are in. these groups include silicates, sulfates and carbonates.

i don't understand

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i don't understand your question