What kind of religion did the ancient egypt practice

What would lead a historian to consider two events to have a relationship of correlation rather than causation

Which of the following is an effect that constantine's conversion to christianity had on the roman empire?

Which of these did the soviet union do in 1961? it built a wall through berlin to keep people from moving to the west. it used force to destroy a wall the united states had built in berlin. it convinced the british and french to merge their zones in berlin with the soviet zone. it threatened to bomb berlin if the united states did not leave within 30 days.