PLEASE HELP VOCABULARY TEST

A unit of measurement of length that is believed to have been developed by ancient Egyptians in about 3000 BCE

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.

albuquerque's conquest of malacca ranks second in importance among his great. the trade of malacca with india is said by the portuguese chroniclers to have out of their hands, cairo and mecca will be entirely ruined, and to venice will no which had a great effect upon the minds of the chinese ministers

the quran was sent by an angel to muhhamad   which made up the quran they beiliev that there is on   god who controls everything and they believ every prophet lived jesus and the jews prophet

immigrants from northern and western europe continued coming as they had for three centuries, but in decreasing numbers