The gold mines of West Africa provided great wealth and power to West African Empires such as Ghana, Mali, & Songhai empire. The king of Ghana started trading back in the 8th century.
They all stopped liking Eachother
I believe your answer is B. people speaking their ideas against government in writing (sorry if I'm wrong)
<span>A large portion of Siberia is covered in permafrost, which basically means that the ground is frozen all year around. As a result it would be difficult to dig for resources in Siberia. Additionally Siberia is quite cold making the working conditions there very harsh.</span>
