Answer:
I'm not sure about the first one as the wording is very rough but brainliest please
Explanation:
circumnavigation =just circuling the earth if that helps
it made the way for advanced maps and sailing practices id assume for other Europeans after.
2. yes. the Europeans would have not "discovered " america and it would have very very heavily effected the slave trade and the goods they were able to use for innovations
3. you could say by trade, as no one likes the other option, trade is better because no one gets hurt and nations/ tribes arent lost because of it.
hope i helped
