Answer:
The reasons people marry vary widely and include, to publicly and formally declare their love, to form a single household unit, social and economic stability, and for the education and nurturing of children.
Same- sex marriage is marriage between two persons of the same biological sex or gender identity.
A civil union, also referred to as a civil partnership, is a legally recognized form of partnership similar to marriage.
Group marriage is a form of polyamory in which more than two persons form a family unit. All the members of the group marriage are considered to be married to all the other members of the group marriage.
Cohabitation is an arrangement where two people who are not married live together in an intimate relationship, particularly an emotionally and sexually intimate one, on a long-term or permanent basis.
Explanation: