England
china
I would think that you should.... AND wyou should most definitly COOK the fish before eating it.
Yes, you should wash green apples before eating them, you should always wash fresh fruit before consuming.
I wouldn't.
onions
About 1-2 hrs.
Yes. You can either frost a cake the day you are eating it, or the day before you are eating it.
we shoud wash our hand before eating because the bacteria in our hand which got stuck before eating should be removed out otherwise there can be stomach pain or some serious diseases
It should be taken on an empty stomach (an hour or more before eating, or two hours after eating).
You should always wash fruits and vegetables before eating them.
Ibt shouldn't hurt
To the hostess , unless it was a BBQ and the host was cooking and working himself to a frazzle, then by al means acknowledge him.
If the sweets are acidic you should wait at least an hour before cleaning them to avoid your enamel being damaged. i think you should but what if you are out somewhere and eating sweets