The altithermal period was significant because it led to all of the following except a. the melting of the glaciers b. the desertification of the great basin region c. the formation of the arbuckle mountains d. the extinction of the megafauna

C. the formation of the Arbuckle Mountains.

nothing did. japan is wierd and always was.

the speech revealed that eastern european countries were no threat to their neighbors, which led to the creation of the truman doctrine i think this might be correct.