Answer:
Columbia Basin.
Explanation:
In the early 1900s, the federal government began an irrigation project in the Columbia River Basin.
This was propelled by the increasing population and thus a high demand for food; fruits and vegetables.
The imrpoved agricultural techniques, such as the three field system, the climate change, and the horse plows. These effected Western Europe during the middle ages because the three field system produced better crops, the climate opened more land to farming, and the horse plows allowed faster harvesting. This made life a lot easier for farmers.
Geologic processes that shape the Earth are cyclical. Geologic processes are only similar in if they occur in the same area.