In 1846, Polk decalred that Mexico had invaded the U. S. and “shed American blood on American soil!” This led to declaration of war on
Mexico.
25. Polk believed what river was the official border between Texas and
Mexico which led to a dispute?
A. Rio Grande River
B. Santa Fe River
C. Nueces River
D. Mississippi River

the andes or andean mountains (spanish: cordillera de los andes) are the longest continental mountain range in the world, forming a continuous highland along the western edge of south america. this range is about 7,000 km (4,300 mi) long, about 200 to 700 km (120 to 430 mi) wide (widest between 18° south and 20° south latitude), and of an average height of about 4,000 m (13,000 ft). the andes extend from north to south through seven south american countries: venezuela, colombia, ecuador, peru, bolivia, chile and argentina.

from wikipedia

hope this !

i believe its the indians

its many islands, high mountains, and remote peninsulas isolated population centers.

after the roman empire, the catholic church began to unify by taking on many duties of a government.