Final answer:
Large scale societies need to publicly justify their legitimacy and authority through government practices, public rituals, national symbols, and media coverage.
Step-by-step explanation:
In large scale societies, the need to publicly justify their legitimacy and authority is crucial. This is done through various means such as government practices, public rituals, national symbols, and media coverage. For example, governments promote national identity through elections, censuses, and the enforcement of laws. Additionally, public rituals and symbols like flags, anthems, and historical monuments help reinforce the legitimacy of the state system.