http://www.bestapples.com/facts/facts_waxing.shtml
They wax their fruits so that they look better and more appetizing. Lots of people would prefer fruit that looked nice, wouldn't they?
Yes, many fruits and vegetables are coated with a non-toxic wax to help keep them fresh looking and shiny at the market.
Wax
There is a natural wax on apples but after harvest apples are washed and brushed to remove leaves and field dirt before they are packed in cartons for shipping. This cleaning process removes the fruit's original wax coating. Without wax, fruits and vegetables like apples lose their crispness and moisture through normal respiration and transpiration - eventually leaving them soft and dry. A food grade wax is sprayed on apples to keep them shiny (for cosmetic purposes) and to protect the fruit.
Paraffin Wax, Parowax, Baker's Wax, or Cooking Wax - It is classified as a chemical preservative, is widely used on fruits, vegetables, and candy to make them shiny and pretty and to retard moisture loss and spoilage. Paraffin is still commonly used to seal home-canned jellies and jams.
Fiber containing fruits and vegetables
They are fruits, but for culinary purposes are treated as vegetables
ARE YOU DUMB? vegetables and fruits don't have fat
fruits are dipped into liquid wax
fruits fruits; their high sugar content oxidizes faster than that of vegetables
they have coating of wax on the outer surface of their body
to protect from predators