Which example shows a a physical change a. rust b. digesting food c. a burning candle d. melting ice

I think it's A, because a burning candle is changing a solid into a liquid. And Melting Ice is doing the same. Rust is something Physical turning into something different, but still physical.

Should be C turns into same thing if melted

answer: glucoamylase presented optimum activity at temperature of 55â°c, and, in the glycosidic bonds from the non-reducing ends of starch, resulting in the production of glucose. source and type of fermentation can affect the enzyme's properties

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