What is a treaty?
a- an informal agreement between two or more nations
b- a formal agreement between two heads of state
c- an informal agreement between two heads of state
d- a formal agreement between two or more nations

Is the weather changing? consider the data of severe weather that includes tornadoes occurring throughout the u. s. over the last four years. compare the severe weather for the last three years. then compare the first three months of 2017 with that data. based on previous years, what might the prediction be for weather during 2017?

What had the biggest effect on the daily lives of south carolina is during the civil war?

How did the environments in north america affect the development of america indian cultures in the period just before europeans arrived