Bees produce honey, which we enjoy for its sweetness and flavour, but they are also vital in pollinating many fruit trees and other plants which provide us with a variety of food, including oranges, coffee and nuts. Read more about honey bees here.

Colony collapse Disorder is the name given to the dramatic fall of the populations of honey bees, and it is a cause of great concern.

Molecules called  'Greenhouse Gases ' that contribute to global warming may be a contributing factor to the difficulties faced by bees, as well as chemical pesticides used in agriculture.

Other possible reasons include the varroa mite, which sucks the blood of the bees and may lower its immune system.

Probably there is not one single factor to explain the fall of honey bee populations.

Honey's sweetness comes from the sugars fructose and glucose .  These are both monosaccharides, and are sweeter than 'sugar' which is a disaccharide called sucrose, made from fructose + glucose joined together.