At construction sites, workers often reduce erosion by
a. moving excess sediment back to its original location
c. planting trees
b. spraying water on bare soil
d. all of the above

The correct answer is D, all the above, meaning moving excess sediment back to its original location, planting trees and spraying water on bare soil. Soil erosion is a process that naturally occur wearing away of the topsoil by the wind, water or any other natural forces linked to farming. At the construction sites big measures of soil erosion take places and they can be controlled by implementing sediment control, limiting soil exposure, modifying topography among others, etc.

first, the romans stayed isolated because they had to defend their own territories from neighboring cities that were harassing them, like the etruscans. second, once the romans managed to defeat their neighbors, and started to expand their territory, they started to build roads and bridges. finally, now that the romans have covered their territory with roads functioning as highways, they could mobilize their legions faster to assemble larger military units in a specific place