In follicles found in a female's ovaries.
Yes, silver nitrate powder can be stored at room temperature as long as it is in a tightly sealed container away from light and moisture. Additionally, it is important to keep it in a well-ventilated area to prevent build-up of potentially harmful fumes.
As long as it is still raw, yes.
If stored properly, an essential oil's therapeutic benefits can last 2 years. Store them in an amber or dark blue bottle/vial at room temperature. Keep them in a dry, dark place as well.
not too long
If you keep it dry and room temerature, decades.
Breast milk that has been stored in the fridge and then brought to room temperature can be safely stored for up to 2 hours before it needs to be discarded.
Breast milk can be safely stored at room temperature for up to 4 hours after being taken out of the fridge. After that, it should be discarded.
No, unless it is in a sealed and unopened package. Otherwise, be sure to keep in the refrigerator or freezer. If out for a long time, throw away immediately so you don't get sick from eating bad food.
Butter can last for days at room temperature. But it is not recommended to leave it out for that long.
I wouldn't recommend it. The 'brittle' part is toffee - which will soften if the room temperature is high. It's best stored either in a cool room - or better still - the fridge.
Breast milk can be safely stored at room temperature for up to 4 hours. If refrigerated, it can be stored for up to 4 days.