There are several reasons why Buddhism spread to other parts of Asia, but the best option from this list is that "<span>Buddhist missionaries carried the teachings on trade routes."</span>
The decades-old feud between them is exacerbated by religious differences. Historically Saudi Arabia, a monarchy and home to the birthplace of Islam, saw itself as the leader of the Muslim world. However this was challenged in 1979 by the Islamic revolution in Iran which created a new type of state in the region - a kind of revolutionary theocracy - that had an explicit goal of exporting this model beyond its own borders.
It is an example of checks and balances
c. Introduction of the camel as a draft animal.
The camel make trans-Saharan trade possible due to its tenacity in adverse conditions. As a result, traders were able to move their items without facing much difficulties had they not had them
I would really love to help but could u add a picture of the excerpt or a brief summary? Sorry