This resource is a source of regional conflict due to its short supply.

water

Explanation:

The accessibility over the supply and distribution of water is the major topic of conflict among the countries and the states. The scarcity of water, the major dependency on the water supply for other sectors, the increase in the population, and industrialization are some of the important factors that lead to the conflict over the water supplies. These issues have many times led to serious conflicts even resulting in war and violence. The advantages of possessing a better water supply help the country in its growth and development.

i think it would be reparing roads  

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.