Final answer:
Secondary groups are more distant and impersonal compared to primary groups. They serve a specific purpose and require continuous interaction to be effective and meaningful.
Step-by-step explanation:
Secondary groups are groups that are more distant or periphery to our lives, they serve a particular purpose and the relationships within these groups might be fleeting. They are often larger and more impersonal compared to primary groups, and they are usually task-focused and time-limited. Continuous interaction is required for secondary groups to be effective and meaningful as they allow individuals to produce new meanings and perspectives that can be used in future interactions.