Why did the arrival of hernado cortes lead to decline of the aztec empire?

Explanation:

Why did Cortes want to conquer the Aztecs?

Hernán Cortés was a Spanish conquistador, or conqueror, best remembered for conquering the Aztec empire in 1521 and claiming Mexico for Spain. ... "He was a smart, ambitious man who wanted to appropriate new land for the Spanish crown, convert native inhabitants to Catholicism, and plunder the lands for gold and riches.

answer; andrew jackson approved nullification by signing it into law,and john calhoun opposed it saying it was unconstitutional;

seeing as no choices were provided, i'll do my best to answer it from knowledge.

job specialization promotes work ethic to the person doing the job. he/she may be strong in the arms and able to lift things, specializing him/her in a job where you lift and carry.