In Canada, who determines who purchases goods and services?

The government has the right to restrict the number of people who visit the white house. this is an example of a government exercising its

From where do ocean waves obtain their energy

Why are governments formed? what role does government play in society? what would life be like without government? what purpose of government would have the most dramatic effect on society if it were taken away? which purpose of government has the greatest effect on your daily life?