It provided free and safe travel across the Silk Road, it isolated Russia, and helped spread the bubonic plague
Luckily, geography is split into two main areas that make it easier to wrap your head around: Physical geography looks at the natural processes of the Earth, such as climate and plate tectonics. Human geography looks at the impact and behavior of people and how they relate to the physical world.
People of the highest social class in society belong to the<span> upper-upper class, aristocrats, or elites. </span>
The answer is C. Dry communities
