Answer:
An economic effect of the French and Indian War on American colonists was that many colonists gained wealth from food and supplies sold to the British army. many farmers lost money when the military raided their crop stores. many colonists gained greater wealth as the British lowered taxes.
Diseases, Because the weapon that the Native Americans had no resistance to that killed THE MOST Natives were the new diseases that were introduced. Yes the diseases weren't new to the Europeans because they had built up immunity. but the Natives had no such immunity and it killed them like wildfire.
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The 16th Amendment allows congress to impose taxes based on income
He purged the Communist Party of enemies.