How has nature cantonment areas changed with the passage of time

The earth's internal process which drives seafloor spreading is

What happens to rock when acid reacts with it?

Canada plays an important role in the global community in all of the following ways except by a. acting as a superpower with influence over europe and asia. b. promoting arms control and disarmament. c. working with the commonwealth of nations to promote trade. d. promoting trade with japan and other asian countries.