<em />In the early phases of the industrial revolution (or industrialization), both Germany and the United States experienced a reduction in agricultural regions and an increase in industrial regions. In other words, agricultural land was used to build factories which housed machinery that made goods. For example factories were built to accommodate textile looms. Before the Industrial Revolution, the weaving of cloth and textiles was mainly the task of the farmer's wives. It was done on a small scale, enough for what each household needed, and maybe some extra to sell or exchange for dry goods. With the increase in trade between Europe, the United States, and Asia, there was a greater demand for textiles and cloth to be woven quicker. This gave rise to big textile mills being built.
D. The reason for the fall of the Maya civilization is still unknown. There are many different theories attempting to explain the cause of the Classic Maya collapse and the abandonment of Maya cities in the southern Maya lowlands of Mesoamerica between the 8th and 9th centuries: climate change, drought, deforestation, etc. but although the drought is the leading theory at the moment the truth is yet unknown.
It is definitely D. Congress fought so hard to keep the Union together prior to the Civil War that they instilled a gag order against speaking of the slavery issue in Congress.
