Which statement best explains how the location of the Italian Peninsula helped the growth of Rome? Romans were able to cross the Adriatic to trade with neighbors.
The Mediterranean Sea provided trade routes and opportunities to travel.
The plains provided excellent farmland for growing crops.
The Italian Alps made it difficult to trade with Sardinia and Sicily.

answer; ///i believe that the correct answer is refrigerants,(like r12) and aerosol

zheng he was a chinese explorer who lead seven great voyages on behalf of the chinese emperor. his seven total voyages were diplomatic, military, and trading ventures, and lasted from 1405 – 1433. however, most historians agree their main purpose was to promote the glory of ming dynasty china.

explanation:

the answers is b.   environments.

the monroe doctrine is the best known u.s. policy toward the western hemisphere. buried in a routine annual message delivered to congress by president james monroe in december 1823, the doctrine warns european nations that the united states would not tolerate further colonization or puppet monarchs.