Answer:
A.
Explanation:
The ancient Chinese civilization was protected from invasion and cultural diffusion because of the geographical isolation. The ancient Chinese civilization was isolated by desert from the north and west, and the Pacific Ocean to the east.
The settlements along the Huang He river were not affected by cultural diffusion because they were isolated by the Gobi desert to the north, which kept people from invading the land.
Therefore, option A is correct.
Answer: Afghanistan, Andorra, Estonia, Iceland, Ireland, Latvia, Liechtenstein, Lithuania, Portugal, Spain, San Marino, Sweden, Switzerland, Tibet, Vatican City, and Yemen were all neutral during the war.
People who worked in factories lived together in small houses that were full to the brim and the idea was to go work while another sleeps, and then you sleep when others work.
There are many reasons but here's two
1. The 'war' and invasion etc was fought in the West so the province that you are going to have to raise troops and revenue from to fight the war is the same one where all the fighting takes place.
Meanwhile the 'East' had Anatolia as a heartland for revenue and recruits that was untouched .
<span>2. There is a lot of evidence that it wasn't simply 'barbarian' invasion but also a large element of rebellion against central authority by local forces. These are the people who are supposed to supply your troops and revenue.</span>
