Which eruopean leaders most encouraged exploration of the world

Which impact did the civil war have on the spread of disease in texas a. disease decreased bc people left the area to fight in the war b. disease increased bc medicine was in short supply. c. disease increased bc many new diseases were brought to the area d. disease decreased bc confederate doctors distribute new medicines to local communities

Why is the end of the cold war tied to the american domestic economy during this time?

What happened in the tinker v des monies? and why is it important what happened in the hazlewood v. kuhlmeier? why is it important?