What was the most significant result of the seven years war?

The outcome of the war was one of the most significant developments in a century of Anglo-French conflict, with Britain gaining control over Canada and Florida. American Indian tribes supporting France included the Wabanaki Confederacy, Algonquin, Caughnawaga Mohawk, Lenape, Ojibwa, Ottawa, Shawnee, and Wyandot.

The Seven Years' War ended with the signing of the treaties of Hubertusburg and Paris in February 1763. In the Treaty of Paris, France lost all claims to Canada and gave Louisiana to Spain, while Britain received Spanish Florida, Upper Canada, and various French holdings overseas.

The war nearly doubled Britain's national debt, which it used to pay off by improvising new taxes on its colonies.

Explanation:

the causes of the dust bowls were severe droughts,   lands became dry and hard, temperature was higher than usual, hot and dry conditions killed crops, high winds. because of those factors, the winds kicked up dry soil and created clouds of dust.

immigrants from northern and western europe continued coming as they had for three centuries, but in decreasing numbers