how plants, animals, and diseases moved among europe, africa, and the americas as a result of the Columbian exchange.

The line dividing regions 4 & 5 on this map is known as the "fall line." which of these represents an important factor of the fall line in georgia history? a) it was the first boundary of the georgia after it became a state. b) it was an important source of power due to a change in elevation. c) it was once home to major cities that have since become abandoned. d) it was a dividing line between the united states and native american territories.

The three estates social system in france ensured balanced representation of all people and treated each social group fairly. true or false ? why?

Why did einstein write a letter to president roosevelt