I have a hour working on it please! : ( (no link and if you can't see it don't answer please thanks)

What do you think was a drawback to this method of calculating distance

What was the focus of the stanford study-pls

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?