Which group used "biological warfare" in order to
expand their empire to the West?

The french people were divided intoestates. church officials, such as priests, were members of theestate. peasants belonged to theestate.

How was slavery in mesoamerica, africa, and the arab world similar? many enslaved people were forced to pledge loyalty to their owners. many enslaved people worked in exchange for protection from foreigners. many enslaved people were captured during war. many enslaved people taught and tutored children.

How did the economic impacts of the great depression differ in the united states and in the soviet union?