No there is no specific reason to keep brown sugar refrigerated. However you should keep in a dry place because moisture will make it clump up rock solid.
to keep it fresh
Becauses are more soluble at lower temperatures (opposite of solids like sugar and salt) to keep soda carbonated (carbon dioxide gas dissolved in soda) is should be stored cold like in the refrigerator.
Ya if you want to keep it cold
You should keep a defrosted ham in the refrigerator. It will last in the refrigerator for between three and five days.
No, the hot milk should NOT spoiled if you keep in refrigerator.
Crab salad should keep safely in the refrigerator for three to four days.
Cauliflower should be safe for 1 week if stored in the refrigerator.
freezer
Unplugging a refrigerator will not damage it, but it has to be ventilated or it will start of smell.
The refrigerator is exactly where you should keep meat that is thawing and meat that has thawed - that is until you cook it. Use it within a few days of thawing.
Well your suppose to store wheat and sugar out in acabinet just don't put it in the refrigerator or keep it in too much heat. Pretty much just keep it at room temperature.
It should keep for a day, maybe two. Any longer is pushing it.