C) The Andes Mountains run north-south in western South America.
It was the Northerns I believe, it pushed he north and south and it began a civil war. Hoped I helped. :)
Goods originated from Mali: gold, ivory, copper;
Goods that Mali obtained through trade: salt, horses;
The Mali Empire was the largest and most powerful African Empire. It was relatively well developed, used its numerous natural resources to get wealth, and was heavily involved in trade. Some of the natural resources of Mali were the gold, copper, and ivory, and this empire used them to get enormous amounts of wealth, as these things were highly demanded and appreciated.
The wealth that Mali was getting, was later used for obtaining things through trade that the empire lacked, like the salt and the the horses. The salt was very popular for the cooking, while the horses were in high demand for transport and warfare.
<span>Two of the major factors were the railroads and the invention of the assembly line. With the finishing of the transcontinental railroad some 30 years earlier, the US had a nation that was linked coast-to-coast and was able to transport goods in a fraction of the time it previously could. With the invention and perfection of assembly line processes, those goods could now be produced in a fraction of the time, as well.</span>
They taxed the colonist to support the army.