Cual es el periodo de inicio y culminacion de la edad media

Convencionalmente, su inicio se ubica en el año 476 con la caída del Imperio Romano de Occidente y su final en 1492 con el descubrimiento de América.

Explanation:

i think the answer is c, rivers.

explanation:

sometimes, borders fall along natural boundaries like rivers or mountain ranges. for example, the boundary between france and spain follows the crest of the pyrenees mountains. for part of its length, the boundary between the united states and mexico follows a river called the rio grande. the borders of four countries divide africa’s lake chad: niger, chad, cameroon, and nigeria.

hi!

your answer is d

mark me brainliest

~courtney