What was the main effect of the 1763 Treaty of Paris
A. France gained more Canadian territories.
B. Spain lost all its holdings in North America
C. Britain gained more land in North America
D. Native Americans lost most of their tribal lands
The main effect of the 1763 Treaty of Paris was that "C. Britain gained more land in North America" since these treaty marked the final British victory over Spain and France in the Seven Years War.