Where are russia’s most productive farmlands?

In the European part of Russia, the most productive land is in the Central Chernozem Economic Region and the Volga Economic Region, which occupy the grasslands between Ukraine and Kazakstan. More than 65 percent of the land in those regions is devoted to agriculture.

The most productive regions are the central black-earth region northeast of Ukraine and the north Caucasus region between the Black and Caspian seas.

heat from the core of the earth causes convection currents to occur in the mantle. these currents slowly move the crust around.