The Mississippi-Missouri-Ohio river system is the largest and most significant river system in the world.
Answer:
Its both but that's controversial. Good because Africans were introduced to new things and were able to create new jobs they learned how to trade, bad because their natural resources were degraded, the Europeans brought diseases to the live stock and Africans, urbanization which isn't always a bad thing but in this case the Africans didn't how to properly "take care" of an urban area.
Explanation:
Its your choice to make there's obviously other reasons but these are the ones I thought of .
