Final answer:
Monogamy is not the most common form of marriage worldwide.
Step-by-step explanation:
The statement is True. Monogamy, which refers to being married to only one person at a time, is not the most common form of marriage worldwide. While monogamy is prevalent in American and European cultures, polygamy, which involves being married to more than one person at a time, is accepted in many countries and cultures around the world. Polygamous societies, where a man is married to multiple women, exist in northern Africa and east Asia.