Answer:
I think that the answer is c
Explanation:
The Mongol invasion had the most significant impact. According to the study's accounting, re-growth of forests during the Mongol invasion absorbed 700 million tons of carbon from the atmosphere, equaling the amount of carbon global society now produces annually from gasoline.
the land was arid and dry so much of the mongols' were multiple clans of pastoral nomads. - they herded sheep and goats and were hunter-foragers, north of the gobi desert in east asia.
Explanation:
The Battle of Antietam was considered a turning point in the Civil War because this was the first major Union victory in the East. Until Antietam, the Confederates led by Robert E. Lee had won most early battles in Virgina, such as First Bull Run, the Seven Days Battle for Richmond, and Second Bull Run.