Which nation controlled the territory along the St. Lawrence and Ohio rivers at the beginning of the war?

British

Explanation:

The French settlements were north of the British colonies along the Saint Lawrence River and the Great Lakes and southward to the Mississippi River. Both claimed the land between the Appalachian Mountains and the Mississippi River known as the Ohio River Valley.

"choosing is refusing" means individuals face an opportunity cost with each decision they make. economists state that every decision involves trade-offs. opportunity cost is the least desirable alternative given up as a result of a decision.

answer; eliminate parking problems in cities, because a car took up only half as much space as a horse and buggy;