Well it depends for how long you leave it for. If it is for weeks or more it is best not to because harmful bacteria or mould could grow on it. However, if you are referring to a few hours, there is an enzyme in apples which react with the oxygen in the air when exposed to it (sliced), which turns it brown, making it look rather unappetizing. In addition, it will probably get more dry and less juicy the longer you leave it, but it won't actually harm you to eat a brown apple!
a peach?
nothing
If you leave the contraceptive implant in too long, you could get pregnant. There is no medical danger from leaving it in other than pregnancy.
If you leave the copper IUD in too long, there are no potential health problems. If you leave a hormonal IUD like Mirena in too long, you may not be protected against pregnancy, but there are no other risks.
It shribbles and if you leave it in there too long it dissolves
I can tell you what happens because I have done this. It smokes and burns!
No the apple charger is too long for a blackberry
I assume you mean NuvaRing. if you leave it in too long it stops being effective and you could get pregnant. Most birth control failure comes from improper use, so it's a good idea to follow instructions carefully.
It depends on the nature of the relationship, but generally, as anyone would, girls left too long may move on to find someone else.
If you leave the copper IUD in too long, there are no potential health problems. If you leave a hormonal IUD like Mirena in too long, you may not be protected against pregnancy, but there are no other risks.
Leaving clothes in the dryer for too long can cause wrinkles, shrinkage, or damage to the fabric. It can also over-dry the clothes, leading to increased wear and tear over time.
All Berries still need water it will grow a bit until it saoks all its water up and if you leave it too long it will die. (happens to me heaps when I forget to check my berry pots)