Answer:
- Superior military equipment.
- Carrying disease
- More combat experience
- More food reserves.
Step-by-step explanation:
- Superior military equipment.
At the time, the Spanish soldiers fought with guns while the native tribes had to fought using axe and arrows. It's an overwhelming advantage for the Spanish soldiers.
- Carrying disease
Many of the soldiers actually a carrier of disease such as chicken pox. Native Americans haven't develop proper immunity for these disease and it caused many of their members to die.
- More combat experience
Vast combat experiences made Spanish soldiers able to implement wider variety of strategies compared to the native tribes.
- More food reserves.
More food reserves enable the Spanish soldiers to pro-longed the battle and let the natives warriors to hunger. This weaken their power and make it much easier for the Spanish soldiers to conquer.