How good does the system of checks and balances work?

Which events are correlated but do not necessarily have a causal relationship?

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

Which of the following wrote detailed accounts about early native american? a) spanish b) french c) americans d) mexicansi need this !