Why are refined grains nutritionally inferior to whole grains? because they contain more fats
because they have additives that help lengthen their shelf lives
because they contain more sugars
because they are stripped of nutrients during the milling process

D. Because they are stripped of nutrients during the milling process

Hope this helps :)

                                                        water

a colorless, transparent, odorless, tasteless liquid that forms the seas, lakes, rivers, and rain and is the basis of the fluids of living organisms.

                                                        halon  

any of a number of unreactive gaseous compounds of carbon with bromine and other halogens, used in fire extinguishers, but now known to damage the ozone layer.

                                                  dry chemical

extinguishing agent used on class a, class b, and class c fires.

                                                  carbon dioxide

a colorless, odorless gas produced by burning carbon and organic compounds and by respiration. it is naturally present in air (about 0.03 percent) and is absorbed by plants in photosynthesis.