Canada became an independent nation by A. Winning a war against Great Britain.
B. Signing a series of treaties with Great Britain.
C. Buying the land from France.
D. Overthrowing Great Britain’s monarchy.

B

Explanation:

On July 1, 1867, with passage of the British North America Act, the Dominion of Canada was officially established as a self-governing entity within the British Empire. ... In 1885, the Canadian Pacific Railway was completed, making mass settlement across the vast territory of Canada possible.

mount st. helens in washington erupts, causing a massive avalanche and killing 57 people on this day in 1980. ash from the volcanic eruption fell as far away as minnesota. seismic activity at mount st. helens, which is 96 miles south of seattle, began on march 16.