How did the construction of the railroads lead to the disappearance of the frontier?

Which situation would be considered an example of the freedom of association? a. three students write a letter to a local newspaper demanding that a teacher be fired. b. a group forms on a college campus to support a particular political candidate. c. an individual purchases a membership to a local gym. d. a religious organization buys several local lots in order to construct a new church building.

In keeping their culture unchanged what do canadians fear the most?

Did the both the us and ussr have atomic weapons after 1949