Japanese knotweed is a plant that can survive the cold european winters. a. weak b. large c. hardy d. stubborn

The correct answer is C. hardy.

Explanation:

The Japanese knotweed plant is a hardy plant that can be very useful for bronchitis, cough, gum disease (gingivitis), and sore mouth and throat. this kind of plat also helps to keep healed from lung diseases, skin disorders, and fluid retention.  This plant is able to survive the cold European winters.

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