I think it's brainstorming
Nutrient - a nutrient is a substance used by an organism to survive, grow, and reproduce.
Within the European borders the Russian Federation is known as European Russia, it´s part of Eastern Europe and has about 77% of Russia´s population, 110 million people. European Russia covers less than 25% of its territory and includes Moscow and Saint Petersburg, the two largest cities of the country.
I hope this answer helps you. Regards.
the answer to your question is, B. Maya is the correct answer
WW1 made Russia to leave during the war, so it was one of the factors that made them have a revolution