Pollution of the ocean and land. Humans cutting down natural trees. The building of roads and shelters etc..
The answer is B. Ignore his I need 20 characters.
Answer:
The French and Indian War resulted from ongoing frontier tensions in North America as both French and British imperial officials and colonists sought to extend each country’s sphere of influence in frontier regions. In North America, the war pitted France, French colonists, and their Native allies against Great Britain, the Anglo-American colonists, and the Iroquois Confederacy, which controlled most of upstate New York and parts of northern Pennsylvania
Explanation:
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He discovered the "new world", he discovered that the world wasn't flat , he brought new diseases to the new world which killed many. (If you need more lmk)