Bananas, apples, Pears, strawberries, celery, avocado, and potatoes all turn brown if left out for long enough.
when it turns brown
All the food and bacteria mix together and it turns brown
The oxygen in the air causes food to rot.
They put it in their butt until it dries up and it turns brown and salty
Yes, they are safe to eat. Just like when an apple slice has been left out turns brown, avocado exposed to air turns brown as well. Try to consume your avocado the same day you cut it.
if its a half eaten apple (or friut) its the air (oxygen), but if its other food, its probably no good anymore :)
Rusting? Oxidation reaction? Chemical reaction
It's the bacteria that makes it brown. And it doesnt always turn out brown somtimes its green, red, black, dark brown, or light purple so its not always brown it just ussaly turns out like that it depends on what you eat
This could be a condition called scaly face. This is when a budgie nose turns brown and scaly which is caused by mites. This could be fatal in the late stages but it is curable. This could also be age related, when budgies get older, their noses turn brown. Correction: When a female budgie's beak turns brown, this is an indication that she is ready to breed.
To tell if glucose is in food you use iodine that turns brown
it turns brown in the refrigarator
brown