Answer:En este sentido, las civilizaciones
Explanation:En este sentido, las civilizaciones son sociedades que han alcanzado un alto grado de complejidad en sus formas de organización, sus instituciones, su estructura social y sus relaciones económicas; que están dotadas de un sistema de político, administrativo y jurídico, y que han desarrollado el conocimiento científico
Answer:
Virginia and Maryland
Explanation:
It interrupts those states' common border, which is the south shore of the Potomac River both upstream and downstream from the District.
Answer:
Obama was the nation’s first African-American president.
Explanation:
The other options are excellent points but his historical significance lies in being the first african american president.
Answer:
Explanation:
A deepening and widening of networks of human interaction within and across regions contributed to cultural, technological, and. biological diffusion within and between various societies.
Improved commercial practices led to an increased volume of trade and expanded the geographical range of existing trade routes including the Silk Roads—promoting the growth of powerful new trading cities.
The growth of inter regional trade in luxury goods was encouraged by innovations in previously existing transportation and commercial technologies, including the caravansary, forms of credit, and the development of money economies.
Changes in trade networks resulted from and stimulated increasing productive capacity, with important implications for social and gender structures and environmental processes.
Demand for luxury goods increased in Afro-Eurasia. Chinese, Persian, and Indian artisans and merchants expanded their production of textiles and porcelains for export; manufacture of iron and steel expanded in China.