Respuesta :
I would say the North European Plain, near Moscow and St. Petersburg
Answer:
a. on the North European Plain
Explanation:
The population of Russia totals 140.8 million, the population density is 8.2 inhabitants per square kilometer.
The population is denser in central and central-eastern European Russia, near the Ural Mountains and southwestern Asian Russia. Most of the population, around 78%, reside in the European part of the country.