Apples change because oxidation, polyphenol oxidase (PPO) in the enzyme mix with air and turn it brown. There are ways to stop the process but just for a little.
No, they do not.
cream
It means there has been no change. You`re trading apples for apples, there`s nothing new.
whitish-blue
red
They don't.
It just happens when they grow the have to get color the skin is only for protection of the insides.
You cant buy a color but you can buy snap apples at the port
They taste diffrnt and diffrent color
Mixing apples and oranges together will not result in a chemical change. You will still be able to recover both the apples and the oranges in their original form after mixing, so no chemical change has taken place.
color change is when a color changes
No. It's just the natural color of a apple.