It allowed materials to be shipped easier and get things farther
The answer is Grandfather Clause !! Just took the quiz
Answer:
West African economic growth rates have been insufficient in most countries to make significant reductions in poverty. Essentially, West Africa’s farmers and firms produce and trade in highly localized markets and do not achieve the sufficient economies of scale required to attract broad-based investment that could accelerate growth and reduce poverty.
(As i have heard from my teacher) there are only 8 wonders in the world of ancient civiliazations..! :)