forever. given its in a sealed container
As long as the lids hold water, and you keep washing them.
Yes, but not for long.
keep it in a hot place
3 days.
how long can cut sweet potatoes stay in water before cooking
it is to keep you safe
ice
No, It doesn't. If you want to keep hot water hot for a longer time use a polystirene cup.
Out of the fridge, water is practically good for several thousand years. As long as the water is covered and it doesn't get any contaminates in it, the water will keep practically forever.
If you burn a peanut it will keep aflame for a long time underwater, and boil the water
It all depends on the density and amount of soil, and the amount of water.
You can keep frogs in a plant pot full of water and mud frogs like to have stones in there so they can get out of the water i dont know how long they will last :)