Final answer:
Promoting cultural exchange programs, establishing international treaties, and encouraging diplomatic negotiations are effective ways to foster global cooperation and harmony.
Step-by-step explanation:
To encourage individual and group involvement in helping achieve global cooperation and harmony, all of the above can be done. Promoting cultural exchange programs, establishing international treaties, and encouraging diplomatic negotiations are all effective ways to foster global cooperation and harmony. Cultural exchange programs promote understanding and appreciation of different cultures, while international treaties provide a framework for cooperation and resolving conflicts. Diplomatic negotiations facilitate peaceful resolutions and create opportunities for dialogue and collaboration.