Many kosher kitchens are American.
Fish and chips can be kosher so long as the fish used is a kosher species and the food is prepared in a kosher kitchen with all kosher ingredients.
Kosher chips aren't different from other chips other than they've been certified kosher. Most major brands of potato chips are kosher although some flavours might not be kosher.
They are made according to Jewish law and custom, and in cleanrd facilities(never touching what un kosher food has touched)
An inter kitchen transfer is when supplies are issued to one kitchen but used by another kitchen. This is used in businesses that have more than one kitchen that prepares different types of foods.
Yes. Outside of Israel, fruits and vegetables generally have no kosher-restrictions, other than those species which must be checked for bugs. In Israel, fruits and vegetables must be tithed (Maasrot: see a siddur [Hebrew prayerbook] for detail).
Cleaner and healthier than non-kosher food.
Kosher alcohol is no different chemically from non-kosher alcohol. Most beers and hard liquors are kosher by default. The only forms of alcohol that need to be specifically certified are wines, wine based liqueurs, or if such ingredients as cream and flavourings are added. Kosher alcohol would be no better... or worse... for you than any other alcohol.
kosher is 4 tines more soluble than Epsom salt.
Kosher food is stored no differently than how any other food is stored.
This is impossible to answer, but the salt content in all kosher meat is significant.
All salt is kosher. "Kosher salt" is a particular grade of salt, with coarse crystals, that is used for making meat kosher, and is also useful in cooking. It's no more kosher than any other kind of salt.
Kosher meat is saltier than non-kosher, so it needs less salt in cooking. Since meat and milk cannot be mixed, kosher cooking often involves non-dairy substitutes for dairy products, and/or vegetarian substitutes for meat. A kosher kitchen will often not have all the same equipment for both meat and milk; and that can dictate what can be made in either one. If a recipe doesn't call for either meat or milk, but it does call for a certain kind of utensil and one only has it in meat or in milk, then the recipe can only be made in that kind.