"Original jurisdiction" cases are rare, with the Court hearing one or two cases each term. The most common way for a case to reach the Supreme Court is on appeal from a circuit court. A party seeking to appeal a decision of a circuit court can file a petition to the Supreme Court for a writ of certiorari.
The growth of Sub-Saharan African Kingdoms was assisted by Agriculture and Trade. Increase in trade routes led to increase in transportation that played a major in increasing the trade activities that led to flourishing of these kingdoms, the major exports included slaves, gold, copper and animal products such as ivory, pelts, feathers and tortoise shells.
Eliminate B and C immediately. The word integrated means to combine or bring things together, which makes the answer choice D wrong. The best choice is A. I hope this helps.
The modern Agricultural Revolution can be understood to refer to the introduction of machinery into revolution (= the start is the development of machines), which made the production more efficient and reliable.