Identify and explain one social and one environmental change that was brought about by the Columbian Exchange.

According to george washington, what was one reason a president should veto a bill?

How did the constitution of 1917 try to resolve some of the problems that started the mexican revolution

Match the vocabulary word with its meaning. 1. gender a large-scale spread of a deadly disease 2. pandemic the development and use of machines, devices and ideas to further people's knowledge 3. technology the sex of a person, whether male or female