The correct answer are: "Government regulation caused high tax increases. " and "Banks slowed borrowing, so people had less money."
The causes of the Great Depression at the beginning of the 20th century are a subject of active debate among economists, and are part of a larger debate about the economic crisis, despite the popular belief that the Great Depression was caused by the Crac of 29. The specific events in economic matters that took place during the Great Depression have been studied in depth: active deflation, and commodity prices, dramatic drops in demand and credit, and disorganization of trade, resulting finally in the growth of unemployment and therefore of poverty. However, historians lack consensus to determine the causal relationship between various events and the government's economic policy as a cause of the Depression.
The oases offer drink, wildlife, shelter, and other commodities the harsh deserts don’t have, so there are most likely more people living around oases in these regions.
