Answer:
adding an idea
Step-by-step explanation:
Have a look at this example: "There are many types of restaurants in town. On one had, there are local restaurants .These are the ones whose specialties are made with local food. On the other hand, there are the ethnic restaurants. These sell dishes from different parts of the world." On the other hand has been used to add information. The topic is about different restaurants in town. First ,local restaurants are mentioned , and to this ,the fact there are ethnic restaurants has been added.