Which statement describes a major advantage of a federal system of government over a unitary system?
a. it eliminates the possibility that individual states might pass conflicting laws.
b. it ensures that a country's government cannot become authoritarian.
c. it eliminates a single national government in favor of individual state governments.
d. it prevents a single national government from holding all of a country's power.

What lands were added to the russian empire under ivan iv, peter the great, and catherine the great?

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By the end of the 1800s, there was a change in the nature of the immigrants coming to the united states. immigration from northern europe—england, ireland, germany, and scandinavia—declined, while immigration from italy, russia, and austria-hungary grew. in fact, between 1900 and 1910, more than three-fourths of all immigrants came from these three countries. unfortunately, these countries were far removed england, the home of our founders, and the immigrants who came from them had a hard time adjusting to life in their new country.