Answer: After the Civil War ended in 1865, the U.S. rail network grew explosively. This expansion connected distant markets and allowed raw materials to be shipped cheaply and quickly from sources in the West and Midwest to factories in the Northeast.
Explanation:
Answer: Fifty five percent of the land in Africa is unsuitable for any kind of agriculture except nomadic grazing. ... About 16% of the land has soils of high quality and about 13% has soils of medium quality.