Identify each source as a primary or secondary source

Which of the following factors would be a likely reason for low population density

Why would the rumor of a government contract change the value of this companys stock

Which statement can be said to be true after examining this map? (1 point) christianity remained popular in egypt after 400 ad. christianity was the only religion in the roman empire until 476 ad. christianity expanded in the roman empire after 325 ad. christianity did not expand beyond the boundaries of the roman empire by 476 ad