You don't have to but if it is dirty, wash it.
We just wash the poop part off, fresh eggs are better when not cleaned. The "bloom" on the shell protects the egg and keeps them fresher, longer.
To smell fresh, look clean, be presentable...?
Yes, you should wash green apples before eating them, you should always wash fresh fruit before consuming.
I have no idea, but I'm pretty sure no.
It depends upon what the egg is being used for. If it is a farm fresh egg intending to be hatched, it should not be washed at all, if dirty, a gentle brushing to clean only, stains on the shell will not come off. If it is store bought, refrigerated eggs, they have already received a wash before being packed into the carton. If gathered by hand with the intention of eating them, then wash them gently under running water, do not soak, as eggs are very porous. No kind of washing detergent or cleaning agent should be used as the egg will absorb any liquid and some aromas it comes into contact with. Use a soft bristled brush and rinse repeatedly. Dry with paper towels or soft cloth and refrigerate in a crush proof container.
Yes, you want the egg to be clean when you crack it to avoid contaminating the yolk & albumin within. A quick running under cold water and rubbing off any obvious dirt placed there by the hen's feet is all you need to do.
Unless eggs are boiled to kill bacteria on them, they should be washed before cracking them open.
yes, it is always a good idea to wash any fresh vegetables, fruits, leafs that will be going into something that will be ingested.
yes that is if you fresh pick them or store bought. if they are already sanitized no, but you should still wash them.
Yes. You should not be handling fresh gloves with dirty hands.
you should wash your hands after handling eggs because of the risk of the salmonella bacteria. Infants, the elderly, the sick and pregnant women are especially prone to salmonella poisoning. http://www.germsunite.com/againstsani/wp-content/uploads/2009/10/salmonella.jpg
The eggs will become infected and probably won't hatch. Make sure you wash your hands before and after handling eggs and you should be fine!