Explain why it is usually more difficult to study and control efficiency in a social system than in a physical system?

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 choices below best describes columbus initial interaction with taino people

Which statement best describes the attitude of the radical republicans following the civil war