Mayan civilization
a. had such a sophisticated religious system that it was adopted by the Spanish invaders.
b. may have been composed of approximately thirty million people at its height.
c. was located in the northern part of the Valley of Mexico.
d. was never wealthy.

Option E, declined before 1000 CE., is the right answer.

Explanation:

A civilization developed by the Maya people came to be known as the Mayan Civilization. This civilization flourished in the area which includes southeastern Mexico, area of Honduras, Guatemala and Belize and El Salvador. This civilization is popularly known for its logo-syllabic script, art, architecture, calendar, mathematics and astronomical system in Pre-Columbian America.

explanation:

i have ni idea

answer: secession

secession, as it applies to the outbreak of the american civil war, comprises the series of events that began on december 20, 1860, and extended through june 8 of the next year when eleven states in the lower and upper south severed their ties with the union. the first seven seceding states of the lower south set up a provisional government at montgomery, alabama. after hostilities began at fort sumter in charleston harbor on april 12, 1861, the border states of virginia, arkansas, tennessee, and north carolina joined the new government, which then moved its capital to richmond, virginia. the union was thus divided approximately on geographic lines. twenty-one northern and border states retained the style and title of the united states, while the eleven slave states adopted the nomenclature of the confederate states of america.

explanation: