Final answer:
A religion where people believe in multiple gods and goddesses is called polytheistic religion. Polytheism features a belief in a pantheon of deities with individual roles, and examples include ancient Greek and Roman religions, as well as Hinduism.
Step-by-step explanation:
A type of religion in which the people believe in several gods and/or goddesses is known as polytheistic religion. Polytheistic religions are characterized by worship of multiple deities, each with different responsibilities, personalities, and capabilities.
Examples of such religions include the ancient practices of Greece and Rome, as well as modern religions like Hinduism. Contrasting polytheism, there is monotheism, where a single deity is worshiped. The concept of polytheism can sometimes be more complex; for instance, some view the Christian Trinity or the manifestations within Hinduism as quasi-polytheistic, though adherents of those faiths may consider them monotheistic.