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1. Rivers are absolutely vital for fresh drinking water and for people's livelihoods and for nature.

2. The French and Indian War (1754–1763) pitted the colonies of British America against those of New France.

3. The 1763 Treaty of Paris ended the French and Indian War/Seven Years' War.

4. They controlled access to the St. Lawrence River and the Great lakes  River

Explanation:

name two ways organisms join a population and two ways organisms leave a population. two ways organisms join a population are birth rate and immigration. two ways they leave are death rate and emigration.

explanation:

your answer will be b. improving roads, bridges, and other infrastructure. hope i !