The spanish were able to maintain control of their colonies in the americas

Using the religious justification and the great commercial interest of the Crown, Spain presented habits, institutions and men that guaranteed the operation of the logic of Hispanic exploitation.

Explanation:

Initially, Spanish possessions were divided into four major Viceroyalty: New Spain, New Granada, Peru, and Rio da Prata. At the same time, four other captaincies were installed: Cuba, Guatemala, Chile, and Venezuela. Appointed by the Crown, the viceroys and captains-general had a series of bodies that legitimized their political-administrative authority. All high-level administrative positions in the Spanish Crown were dominated by a specific group. Only individuals born in Spain could hold these positions. Finally, there was a local elite that had control over commercial and agro-export activities.

c. taught scientists many new things about the earth, but not other planets.

explanation: