1 month.
Foods can spoil at 40°F in the refrigerator, so the answer is, 'Yes.' How long it will take or the type of spoilage depends upon the food itself.
Milk typically spoils within 7-10 days if stored in the refrigerator at the proper temperature.
While white chocolate *can* spoil by developing mold, it is very uncommon unless you have kept your white chocolate in a humid place for a long, long period of time and/or it has been poorly wrapped. White chocolate is particularly more unlikely to develop mold than milk or dark chocolate because of the large quantity of sugar used to make it. However, white chocolate (because of the cocoa butter in it) *is* very prone to picking up ANY smells that are nearby it. For this reason, it's not recommended to store it in your refrigerator because it will pick up refrigerator smells and affect the taste. So, while white chocolate stored in this manner may be safe to eat and not spoiled, you may not like to eat it if the flavor is compromised (ewwww :p)
Not long
Meats are kept better in the freezer. Meats can be kept in the refrigerator for 3 to 4 days if raw and 1 to 2 days longer if cooked. Always place cooked meats in an airtight container.
It depends on the type of chocolate and how it is stored. Typically chocolate will last for 2-4 months past it's best by date if stored in the pantry, 4-6 months if it is in the fridge and up to 8 months in the freezer.
Milk typically spoils and becomes unsafe to consume within 7-10 days after the sell-by date, when stored in the refrigerator at the proper temperature.
If food particles remain in the teeth , it can spoil your teeth quickly.
The same amount of time it take to grow
A few hours
it takes 2 hours from sitting out
it depends on what your cooking