How did spanish voyage in exploitation change european ideas about the world

This is for my social studies guide and i can answer 21/22 of it perfectly fine. but can someone tell me what the caste system was, and what divisions/classes that it was apart of it?

How did growing secularism influence writer during the renaissance a. they based their scientific ideas on the teachings of the church b. they began to translate the bible into the vernacular c. they wrote more books about non-religious subjects d. they translated greek and aribic writings into latin

The most important prophet in judaism is generally considered to be abraham moses isaiah jesus of nazareth