i think it is because when you leave an apple that has been cut open it reacts with the air. the apple in your smoothie has reacted with the air and gone brown. it should be ok to drink but it depends on how long it has been in your fridge for.
no]:
yes.
An apple in a Ziploc bag, and it helps to put it in the fridge or freezer!
A pear, because it's softer then an apple. This means even when left in the fridge bacteria and what not will penetrate it more quickly.
It starts to get brown and soft
No, it would be a chemical if someone cut open a apple and left it on a table for 20 minutes then coming back and the apple being brown.
After 8 to 10 days if left not in a ziploc bag it becomes moist, brown, and smells bad
The Left-Hand Side of the Fridge was created in 2000.
You can put the pulp in a smoothie or just compost it.
forever
The apple has a chemical reaction to the oxygen. It is sort of like metal oxidizing (rusting). Even though the apple has turned brown, there is nothing wrong with it. ~ A 12 yr. old girl :D
Nothing will happen, except the thermometer will show the fridge's interior temperature.