Final answer:
Marriage is an example of 'Rituals and ceremonies', a characteristic of religion that emphasizes cultural practices and the formalization of social commitments.
Step-by-step explanation:
Marriage is an example of Rituals and ceremonies, which are a basic characteristic of religion. Religious ceremonies, such as weddings, fulfill social needs, represent shared values, and signify religious and social commitments. Marriage rituals may vary across different religions, but they often share a common purpose: to solemnize the union between individuals in a culturally and spiritually recognized manner. These ceremonies provide structure, reinforce social norms, and contribute to the broader social institution of religion by creating a formalized passage for individuals within their community and faith.