In a perfectly competitive market, competition drives prices to the point where they generate profits. no longer cover costs. just cover costs. produce losses.

   Generate profits

Explanation:  In a perfectly competitive market that involves the absence of a monopoly, prices are formed so that all competitors make a profit. The absence of a monopoly means fair conditions for everyone, and anyone, according to their abilities, investments, can make a profit. Otherwise, the monopoly destroys other competitors by forming a price that is not realistic by the laws of the market, that is, is not marketable and exceeds the capabilities of other competitors. A perfect competitive market, in other words, means determining the market conditions in which all competitors can participate.

answer: hey improve the marine life in a certain area.

they provide a new location for fishermen to fish and which works to ease the pressure on natural reefs.

they are a great way to get rid of large objects that would otherwise be placed on landfills

explanation:

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.