A bunch of Scandinavian warriors and merchants, who were actually called Varangians, started expanding into Russia during this time, subduing the local Slavic tribes & forming the Kievan Rus.
Based on our science, the universe could have three possible shapes dependant on the amount of matter in it, the matter affects the curvature of the universe, linked to its shape and geometry. For example, a closed Universe will have a positive curvature, meaning that the average density is more than the critical density. An open universe, on the other hand, would have a negative curvature, and therefore the qaverage density would be less than the critical density. A flat universe would have no curvature and the average density would be equal to the critical density. These shapes relate to the fate of the universe, a closed universe would be finite, an open universe would be infinite and a flat universe would be infinite with no curve.
your answer is d hope this helps
The factor that helped the United States in making the inland transportation and commerce to be possible is in letter C. The intricate river system. I hope you are satisfied with my answer and feel free to ask for more if you have clarifications and questions.
