1. how did Columbus's relationship to the Spanish crown changed over time, and why?
2. Why did Columbus's voyages lead to permanent European settlement in the Americas, whereas the tenth-century Viking voyages did not?
3. Assess the significance of European maritime technology and superior weaponry in making the Enterprise of the Indies possible.
4. Analyze the consequences of the exchange of food plants, animals, and diseases among Eurasia, Africa, and the Americas after 1492.

I get the feeling you are seeking answers which could be copied and turned in as your own work. (I could be wrong, tho.)

Anyhow, my suggestion is to show what you have written for each one and ask peeps to critique it.

Good idea:)