Which statement about supercell storms is false?
a. a supercell storm can produce some of the most violent weather conditions on earth.
b. a supercell storm occurs only during the winter months.
c. a supercell storm is characterized by rotating updrafts.
d. a supercell storm can develop into a self-sustaining, extremely powerful storm.

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.

51% were unhappy, i think .   ; )