Tragically, since its discovery, what’s been happening to the pompeii ruins?

Since its discovery of the Pompeii, archaeologists are facing problems for preserving the ruins for the future. Volcanic ashes protected Pompeii for a long time, which is now exposed by the archaeologists for many years. The tourists, weather, and pollution have created a danger of losing much of the ruins.

the correct answer is "c: merchants" and "e. soldiers".

the song dynasty was known as the first government in the world to introduce paper currency. it was also the first chinese government which established a permanent standing navy. finally, the first compass was introduced during this period of government.

all of these innovations heavily affected commerce in a positive way. printed money dynamize commerce within the borders of the empire due to an easier way to quantify value during the trade. the introduction of the compass trade routes to be faster. finally, the introduction of a standing navy regulate trade routes.

regarding military affairs, gunpowder was created during this period. this was a tremendous improvement that was widely utilized by the military in order to innovate in the manufacturing of weapons.

because the vietnam war was fought in an especially brutal and untraditional way