What was the primary purpose of the mounds built by the mound builder cultures? a. mounds builders used them to perform rituals and burials. b. mounds builders used them to deposit artifacts. c. mounds builders used them to hide gold and silver. d. mounds builders used them to mark military victories.

a factory opens that mass-produces light bulbs.

explanation:

not sure if that's an answer to your questions but this is an example! : )

the chair is the committee member from the majority party who has the most seniority. in the south carolina senate, the chair is the committee member from the majority party who has the most committee seniority.