Because the Byzantine Empire was largely Greek in language and culture, what was the biggest influence of Byzantine/Greek culture on Russia?

which empire had the greatest influence on the history and cultural development of russia?

the answer would more than likely a.)falling crop prices  

hope the answer is right and ,either way have a nice day.

the national congress's powers over the states were specific and definite: it had the sole power to negotiate treaties, declare war, and make peace. all powers not granted to congress were reserved for state governments. congress had no power to levy taxes, for example.