Several different organizational patterns are used within the text. For the following questions, refer to this excerpt from the text: If all of these should have properties as diverse as oxygen, hydrogen, and nitrogen, the study of chemistry would plainly be a very difficult and complicated one. If, however, the elements can be classified in groups, the members of which have very similar properties, the study will be very much simplified. Part A Question Which organizational pattern is used in this excerpt? compare and contrast problem and solution chronological order description