Answer:A Danube
Explanation: The three rivers shown are the Volga 1, Ob 2 and Lena 3 all in Russia and the Danube is not shown because it is not in Russia but flows in behind the Adriatic Sea over to Germany and so is in a different part of Europe though all 4 rivers are major rivers in Europe.
The answer might be that "they both have opinions about what they think about it"
I want to say it is either the second or third answer, most likely the second. From what I remember learning in class is that they were building a winding railroad to California.
Mexico is a country of South America.
South America is a continent
Northern Africa is located in Africa.
Northern Africa is both a country and is part of a continent
hope this helps<span />
