How did the industrial revolution lead to the need for reform

(05.04 mc) how did the roman transportation system keep the empire strong? plz

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?

Which agency is under the authority of the department of labor? sec osha epa fda