What year did the Post Office begin
flying the air mail on a scheduled basis?

Does proctor agree with parris decision to send for hale in act one

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 was the underlying cause of the cold war?