Which were th's native people who dug hundreds of miles of irrigation channels
a. mound builders
b. somalia
c. hohokam
d. anasazi

What did president johnson risk violating the tenure of office act to the fire of his secretary of war

What is significant about official languages in russian republics? why would it matter?

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?